JBL LSR6300 User's Manual
Contents
1. amp 8 Off Flat Switch 7 On 1 dB 60 1000 10000 Frequency Hz LED Indication A single LED indicator is located on the front of the LSR 6328P In normal operation this LED will be GREEN At the onset of clipping in either the low or high frequency amplifier the LED will flash RED Continuous flashing of the red LED indicates that levels should be reduced Caution The LSR6328P is capable of producing extremely high sound pressure levels To avoid hearing damage caution should be exercised RMC Equalization There are three screwdriver adjustable controls on the rear panel of the 6328P indicated RMC The term RMC stands for Room Mode Correction which consists of a single section cut only parametric equalizer that can be adjusted in frequency width Q of cut and the amount of cut It is used to reduce the magnitude of any dominant low frequency peak in response due to standing waves at the listen ing position Details of Room Mode Correction are presented in the user guide included with the RMC Calibration Kit LSR6332 Studio Monitor System The LSR6332 Linear Spatial Reference Studio Monitor combines JBL s latest in transducer and technology with recent breakthroughs in system design to provide a more accurate studio reference in a variety of pro duction environments The neodymium 12 woofer is based on JBL s patented Neodymium Differential Drive NDD technology With the Neodymium magnet structure2. and dual drive coils power compression is kept to a minimum to reduce spectral shift as power levels increase An added third coil between the drive coils acts as a dynamic brake to limit excess excursion and reduce audible distortion at the highest levels The cone is made of a carbon fiber composite forming a rigid piston supported by a soft butyl rubber surround The midrange is a 2 neodymium magnet structure with a woven 5 Kevlar cone The powerful motor structure was chosen to support the low crossover point to the woofer In order to achieve the goal of accurate spatial response the crossover points are located at 250 Hz and 2 2 kHz These transition points were chosen to match the directivity characteristics of the three transducers The high frequency device is a 1 composite diaphragm integrated with an Elliptical Oblate Spheroidal EOS Waveguide with 100 by 60 dispersion which is critical to the smooth spatial response required in today s working environments The mid and high frequency drivers are mounted within millimeters of each other on a cast aluminum sub baffle that can be rotated for horizontal or vertical place ment This allows maximum flexibility in placement to reduce console and ceiling splash that interferes with imaging and depth The crossover filters are optimized to yield 4th order 24 dB octave Linkwitz Riley electroacoustic responses from each transducer in phase 6 dB at crossover In order t
3. by Sub Direct Input Only WARNING To Reduce Risk of Fire or Electric Shock H A Harman International Company Do Not Expose This Equipment to Rain or Moisture Open Contact _L c r Signals High Passed Sub Driven by Summed Low See Owners Manual for Set up and Safety Precautions Assembled in USA Passed L C R Signals plus Sub Direct O LSR6312SP Powered Studio Subwoofer System AC Power Connections The LSR6312SP power supply voltage is internally set at the factory for 100 125V or 200 250V The ground terminal of the IEC plug is required by wiring codes and regulations It must always be connected to the electrical installation safety ground The LSR6300 Series electronic units have carefully designed internal grounding and balanced inputs and outputs to reduce the likelihood of ground loops Audio Level Adjustment Switch 1 enables the Input Trim pot With the switch in the down position the trim control is out Figure K B B A i i A of the circuit and does not affect the input sensitivity In the up position the input trim is added to the circuit and will attenuate the input level from 0 13 dB e Switch 2 changes the nominal sensitivity of the LSR6312SP L C R and Direct inputs to 4 dBu e Switch 3 changes the nominal sensitivity of the LSR6312SP L C R and i i Direct inputs to 8 dBu m or ea baaa e Use of Switch 2 and 3 together changes nominal input sensitivity to 12 dBu 8 dBu input Sensitivity Signal Polarity Inverted 4
4. damage The best way to safely unpack your monitors is to open the top of the box keep the cardboard filler piece on and roll the box upside down The box can then be slipped off This also works in reverse for repacking the units Placement The design of the LSR6300 systems lend themselves to a wide variety of placement options Covered here is a typical stereo setup for near to mid field monitoring A more detailed discussion of multi channel sound system placement is available from JBL in Tech Note Volume 3 Number 3 Listening Distance The common listening position at mixing postions is generally 1 to 1 5 meters 3 to 5 feet for near field applications For mid field applications 2 to 3 meters is more likely The stereo listening angle is largely a matter of personal preference and we suggest the angle of the loudspeakers should be between 35 and 50 degrees as shown in Figure A FigureA Vertical vs Horizontal Placement The LSR6328P model is designed to be positioned vertically This orientation eliminates the phase shifts that occur when the relative distances between the woofer tweeter and the listening position are altered The high frequency waveguide is designed to provide optimum dispersion when the system is placed vertically Placing the system horizontally will defeat the LSR principles and cause destructive reflection off the work surface The LSR6332 is normally used in the horizontal position This provides the l
5. frequency performance at higher output levels Dynamic Braking All LSR6300 low frequency transducers are equipped with an electromagnetic braking voice coil to reduce the effects of extreme excur sion with high transient program materials Titanium Composite High Frequency Device Using patented technology the high frequency device incorporates titanium and composite materials to improve transient response and reduce distortion By reducing distortion in the lower operating range where the ear is most sensitive ear fatigue is radically reduced Elliptical Oblate Spheroidal EOS Wavequide Designed for a targeted listening window of 30 horizontally and 15 vertically the EOS waveguide provides a frequency response through the entire window of 1 5 dB from on axis response This allows listeners at a distance from the speakers and even far off axis to hear an accurate representation of the on axis response Neodymium Midrange with Kevlar Cone A 2 neodymium motor structure is used in the LSR6332 for high excursion capability with an intentionally low crossover point of 250 Hz This improves the spatial response of the system which is crucial for accurate reproduction Getting Started Unpacking When removing the systems from their packaging it is important not to grasp the units from the front Because the high frequency device is located near the top of the cabinet on the front baffle a stray hand or finger can cause
6. go undetected For example extreme low frequency rumble will be visible as a pronounced fluttering motion of the woofer cone To protect the low frequency transducer normally switch 4 is set to Off LSR6328P Biamplified Studio Monitor System Boundary Compensation Switch 5 introduces a low frequency shelf roll off of 1 5 dB while Switch 6 introduces a low frequency shelf rolloff of 3 dB Engaging both switches will produce a low frequency shelf rolloff of 4 5 dB These functions are known as Boundary Compensation and are used to adjust for the build up of low frequencies that accompany the placement of loudspeakers near walls or corners or work surfaces The changes in low frequency response using Switches 4 5 and 6 are shown in Figure F 20 00 0 dB Diagram F 1 5 dB x OAN 15 00 3 0 dB HH 4 5 dB Hee 10 00 g 4 5 00 i 0 0 5 00 10 00 15 00 j j J 20 00 L 10 20 30 4050 100 200 Frequency Hz High Frequency Adjustments Switch 7 introduces a high frequency response shelf cut of 1 dB above 2 kHz This may be used if the room is fairly live or if you are fairly close to the loudspeakers Switch 8 introduces a high frequency response shelf boost of 1 dB above 2 kHz This may be used if the room is extremely dead The changes in high frequency response using Switches 7 and 8 are shown below in Figure G Figure G Switch 8 On 1 dB Switch 7
7. heavy load can result in serious injury and equipment damage Mounting of speakers should be done by qualified persons in accordance with all applicable local safety and construction standards Be certain to follow the instructions providied by the manufacturer of the mounting bracket be certain that it is capable of supporting the weight of the speaker to be mounted Appendix C RMC Room Mode Correction System Specifications Frequency Control 18 frequency centers 21 detents Q Contorl 1 2 octave to 1 20th octave 21 detents Data Entry in RMC Equalizer Depth Control 0 dB to 14 dB cut 21 detents Control Position Width Frequency Hz Depth dB Makeup Gain Control LSR6312SP only 0 dB to 6 dB 0 CCW Remote RMC Bypass Jack 1 4 tip sleeve jack 26 00 28 0 5 31 1 1 35 1 9 41 2 9 45 4 4 47 6 4 50 7 9 53 8 3 57 8 9 62 9 5 68 10 2 76 11 0 85 11 7 90 12 7 90 13 1 95 13 5 95 13 9 95 14 CCW counter clockwise CW clockwise Specifications LSR6328P Frequency Response 1 1 5 dB 50 Hz 20 kHz Enclosure Resonance Frequency 38 Hz Low Frequency Extension 3 dB 10 dB User controls set to default 6 Hz 36 Hz Low High Frequency Crossover 1 7 kHz 6th order acoustic Linkwitz Riley Distortion 96 dB SPL 1 m Mid High Frequency 120 Hz 20 kHz 2nd Harmonic 3rd Harmonic lt 0 6 lt 0 5 a5 FS Be ee a e ax Aa aie oe Low Frequency lt 120 Hz
8. lt 1 Note lt 0 4 250 Hz 20 kHz lt 0 4 dB lt 1 0 dB t 300 T i 400 500 x dB a K L 800 L 700 iy 800 10000 20K 100 96 dB 1 m Distortion raised 20 dB Low Mid Frequency Crossover 4th Order Acoustic Linkwitz Riley 250 Hz Mid High Frequency Crossover 4th Order Acoustic Linkwitz Riley 2 2 kHz Transducers Low Frequency Model 252G Diameter 300 mm 12 in Voice Coil 50 mm 2 in Differential Drive with dynamic braking coil Magnet Type Neodymium Cone Type Carbon Fiber Composite Impedance 4 ohms Mid Frequency Model Diameter C500G 125 mm 5 in Voice Coil 50 mm 2 in aluminum edge wound Magnet Type Neodymium Cone Type Kevlar composite Impedance 4 ohms High Frequency Model O53TiS Diameter 25 mm 1 in diaphragm Voice Coil 25 mm 1 in Magnet Type Ceramic 5 Diaphragm Type Damped titanium composite Other Features Elliptical oblate spheroidal waveguide Impedance Physical 4 ohms Finish Smooth dark graphite Enclosure Volume Net 50 liter 1 8 cu ft Input Connectors 5 way binding posts Input Features Bi wirable Mounting 4 threaded mounting points conforming to industry standard square pattern 12
9. of shipping charges is discussed in the next sec tion of this warranty How to Obtain Warranty Performance If your JBL product ever needs service write or telephone us at JBL Incorporated Attn Customer Service Department 8500 Balboa Boulevard PO Box 2200 Northridge California 91329 800 852 5776 We may direct you to an authorized JBL Service Agency or ask you to send your unit to the factory for repair Either way you ll need to present the original bill of sale to establish the date of pur chase Please do not ship your JBL product to the factory without prior authorization If transportation of your JBL product presents any unusual difficulties please advise us and we may make special arrangements with you Otherwise you are responsible for trans porting your product for repair or arranging for its transportation and for payment of any initial shipping charges However we will pay the return shipping charges if repairs are covered by the warranty Limitation of Implied Warranties ALL IMPLIED WARRANTIES INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE ARE LIMITED IN DURATION TO THE LENGTH OF THIS WARRANTY EXCLUSION OF CERTAIN DAMAGES JBL S LIABILITY IS LIMITED TO THE REPAIR OR REPLACEMENT AT OUR OPTION OF ANY DEFECTIVE PRODUCT AND SHALL NOT INCLUDE INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS AND OR DO NOT ALLOW THE EXCLUSI
10. using either professional or semiprofessional equipment Using the DIP switches on the back as shown below in Figure E the system can be set for 4 dBu 8 dBu or 12 dBu sensitivity Switch 1 enables the Trim Control With the switch in the down position the Trim Control is out of the circuit and does not affect the input sensitivity In the up position the input trim is added to the circuit and will attenuate the input level from 0 13 dB relative to nominal e Switch 2 lowers the input sensitivity to 4 dBu sensitivity when in the up position e Switch 3 lowers the input sensitivity to 8 dBu sensitivity when in the up position e Switches 2 and 3 in the up position lower input sensitivity to 12 dBu AAA ARABA Figure E Input Trim Active i HF Level 1 dB 2 kHz 20 kHz 4 dBu Input Sensitivity HF Level 1 dB 2 kHz 20 kHz 8 dBu Input Sensitivity 3 0 dB VLF Protect Off 1 5 ap 4 5 dB LF Boundary Comp Low Frequency Adjustment The low frequency response of the LSR6328P can be adjusted to increase or reduce the low frequency output level With all bass adjustment switches off the unit is set to a 36 dB octave roll off with a maximally flat characteristic Switch 4 VLF Very Low Frequency Protect Switch 4 changes the low frequency roll off to a 24 dB octave slope which extends the low frequency capability while slightly reducing maximum sound pressure level This is useful for spotting subsonic signals that could other wise
11. 2nd Harmonic 3rd Harmonic lt 2 lt 1 SPL Maximum SPL 80 Hz 20 kHz gt 108 dB SPL 1m dB Maximum Peak SPL 80 Hz 20 kHz gt 111 dB SPL 1m Signal Input Neutrik Combi XLR G in tip ring sleeve bal anced or unbalanced positive voltage applied to XLR pin 2 G tip produces outward woofer motion Calibrated Input Sensitivity XLR amp G 4 dBu 8 dBu 10 dBV 96 dB SPL 1 m 96 dB SPL 1m AC Input Voltage 100 240 VAC 50 60 Hz auto sensing AC Input Connector IEC Long Term Maximum System Power 220 watts IEC265 5 Self Generated Noise Level lt 10 dBA 1 m Tonal artifact free noise floor User Controls High Frequency Control 2 kHz 20 kHz 1 dB 0 dB 1 dB Low Frequency Control lt 100 Hz 0 dB 2 dB no Low Frequency Alignments 36 dB octave 24 dB octave VLF protection off Calibrated Input Sensitivity 10 dBV 4 dBU 8 dBU Boundary Compensation Settings 0 1 5 3 0 4 5 dB Variable Input Attenuation 0 dB to 13 dB RMC External Bypass G jack Active RMC Switch In Out RMC Frequency Adjust 26 Hz 96 Hz 10th octave 21 centers RMC Depth Adjust 0 14 dB cut only RMC Q Adjust 1 20th to 1 2 octave 21 steps Transducers Low Frequency Model 218F Diameter 203 mm 8 in Voice Coil 38 mm 1 5
12. 7 x 70 mm 5 x 2 75 in center to center M6 metric thread Baffle Construction Injection molded structural ABS Enclosure Construction 19 mm 3 4 in MDF Net Weight 20 4 kg 45 Ib Dimensions WxHxD 63 5 x 39 4 x 29 2 cm 25 0 x 15 5 x 11 5 in Caution Unsafe mounting or overhead suspension of any heavy load can result in seri ous injury and equipment damage Mounting of speakers should be done by qualified persons in accordance with all applicable local safety and construction standards Be certain to follow the instructions provided by the manufacturer of the mounting brack et Before selecting a mounting bracket be certain that it is capable of supporting the weight of the speaker to be mounted 3rd rasied 20dB N Frequency 1000 Hz 10000 20K Notes All measurements unless otherwise stated made anechoically at 2 meters and refer enced to 1 meter by the inverse square law The reference measurement microphone position is located perpendicular to the center line of the mid and high frequency transducers at the point 55 mm 2 2 in below the center of the tweeter diaphragm Mean SPL from 100 Hz to 20 kHz Describes anechoic 4p low frequency response Acoustic loading provided by the lis tening room will increase low frequency bass extension Distortion measurements performed with the input voltage neces
13. AIN OR MOISTURE CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN DO NOT EXPOSE TO RAIN OR MOISTURE ATTENTION POUR EVITER LES RISQUES DE CHOC ELECTRIQUE NE PAS ENLEVER LE COUVERCLE AUCUN ENTRETIEN DE PIECES INTERIEURES PAR LUSAGER CONFIER L ENTRETIEN AU PERSONNEL QUALIFIE AVIS POUR EVITER LES RISQUES D IN CENDIE OU D ELECTROCUTION N EXPOSEZ PAS CET ARTICLE A LA PLUIE OU A LHUMIDITE ATTENTION RISQUE DE CHOC LECTRIQUE NE PAS ENLEVER NE PAS EXPOSER A LA PLUIE NI A L HUMIDIT The information contained in this document is confidential and the copyright of JBL Professional To convey its contents in part of it whole to any party without prior written authorization is a violation of the copyright JBL Professional 2003 Table Of Contents Introduction Getting Started Unpacking Placement Power Connections Making Sound LSR6328P Biamplified Studio Monitor System Audio Connections AC Power Connections Audio Level Adjustment Low Frequency Adjustment High Frequency Adjustment LED Indication RMC Equalization LSR6332 Studio Monitor System Audio Connections High Frequency Adjustment Changing Mid High Orientation LSR6312SP Powered Studio Subwoofer System cccccccccssssceeeeeesseeeceeesssseeeeee Audio Connections AC Power Connections Audio Level Adjustment Low Frequency Adjustment LED Indication RMC Equalization System Configuration APPENA Gee age PE SE eared eee eT Eee A Wiring Requir
14. LSRGS3OO Studio Monitors Owner s Manual Important Safety Instructions 1 Read These Instructions Before operating your new JBL product please read safety and operating instructions Keep These Instructions For future reference and troubleshooting purposes retain these instructions Heed All Warnings All warnings in this manual should be followed Follow All Instructions Water and Moisture This product is intended for indoor use only Do not use this apparatus near water or plumbing fixtures Cleaning Do not use any solvent based cleaners on the finish To clean enclosure turn off speaker and disconnect power cord then clean only with a lint free cloth moistened with water Ventilation Do not block any ventilation openings including the Linear Dynamics Aperture Port on the monitor systems Install these products in accordance with manufacturers instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus that produce heat Grounding and Power Cords Protect the power cord from being walked on or pinched particularly at the plug s convenience recepti cle and the point where it connects to the apparatus Do not defeat the safety purpose of the grounding type plug The pouer cord sup plied with your powered product has a plug with 2 blades plus a 3rd grounding prong Do not cut off or damage the grounding prong If the provided pl
15. ON OF INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE JBL Professional Contact Information Mailing Address JBL Professional 8500 Balboa Blvd Northridge CA 91329 Shipping Address JBL Professional 8370 Balboa Blvd Dock D Northridge CA 91329 Customer Service Monday through Friday 8 00am 5 00pm Pacific Coast Time In the U S A 800 8JBLPRO 800 852 5776 www jblproservice com On the World Wide Web www jblpro com Product Registration Register your product online at www jblpro com registration H A Harman International Company Part 350800 001 Outside the USA Contact the JBL Professional Distributor in your area A com plete list of JBL Professional international distributors is pro vided at our U S A website www jblpro com En Dehors des Etats Unis Contacter votre Distributeur JBL Professional Une liste com pl te de nos distributeurs internationaux est disponible sur le site web www jblpro com International Wenden Sie sich an Ihre rtliche JBL Professional Vertretung Eine vollst ndige Liste der internationalen JBL Vertretungen finden Sie auf userem Website unter www jblpro com Fuera de los Estados Unidos Comun quese con el distribuidor de JBL Professional de su zona En nuestro sitio web www jblpro com encontrar
16. QE VE Active Switch O 20 m as aS eR 24 96 o 14 O O v U Hz Hz dB im 100V 240V 50 60 Hz 175 lai Input Pi Watts Serial No Nominal Configuration L o O All Switches Down O Input Trim Active HF Level 1 dB 2 kHz 20 kHz Input Sensitivity 10dBV JBL PROFESSIONAL 4 dBu Input Sensitivity Le Level 1 dB 2 kHz 20 kHz Northridge CA USA 8 dBu Input dB VLF Protect Off Bat 49 46 LF Boundary Comp H A Harman International Company O RMC Frequency Depth 1 1 Width Remote I Bypass Assembled in USA LSR6328P Biamplified Studio Monitor System The LSR6328P Bi amplified Studio Monitor sets the standard for exceptional performance in near field design With a combination of advanced transducer engineering and powerful drive electronics the LSR6328P meets the professional s requirement for accuracy and high dynamic range on the most demanding sessions The addition of JBL RMC Room Mode Correction circuit and boundary compesnation ensures accurate low fre quency response at the listening position free of the spectral shift caused by room modes and the effect of boundaries The 8 woofer is based on JBL s patented Differential Drive technology With dual 1 5 drive coils power compression is kept to a minimum to reduce spectral shift as power levels increase An added third coil between the drive coils acts as a dynamic brake to limit excess excursion and reduce
17. SR6332 Studio Monitor and other speakers enjoy the benefits of RMC when used in a system with the LSR6312SP Subwoofer The RMC Calibration Kit gives you everything you need to tune your LSR system and compensate for the room modes in the listening environment Included with the LSR6312SP Optional accessory for the LSR6328P Boundary Compensation LSR6328P and LSR6312SP boundary compensation presets restore accurate bass response when the loudspeakers are wall mounted or positioned close to walls corners and placed on work surfaces Mounting Options LSR6300 enclosures are reinforced to make them safe for mounting and mounting points are provided for use with readily available industry standard mounting brackets THX pm3 All LSR6300 models are THX pm3 approved for use in the most demanding production applications and environments JBL Transducer Technologies Differential Drive New voice coils and motor assemblies have two separate drive coils with twice the thermal surface area of traditional speakers This enables LSR6300 systems to provide higher peak output with less power compression greater heat dissipation and a flatter impedance curve at higher frequencies By reducing the thermal related effects the LSR6300 Studio Monitors sound the same at low medium or high levels Linear Dynamics Aperture Contoured ports virtually eliminate high end turbulence found in traditional port designs This provides more accurate low
18. T R S input is generally set for a nominal 10 dBV input and the XLR input is generally set for 4 dBu For balanced signals the HOT signal from your source should be connected to the tip of the T R S connector or Pin 2 of the XLR input as shown in Diagram A The COLD signal should be connected to Pin 3 of the XLR or the Ring of the T R S connector To avoid ground loops connect the SHIELD at the source end but not at the LSR input Balanced Source LSR Input Diagram A Sleeve Sleeve Unbalanced Sources When using unbalanced sources there are more possibilities to introduce ground loops into a system The LSR6328P and LSR6312SP offer several ways to help alleviate potential problems with unbalanced equipment While there are only HOT and GROUND SHIELD connections from unbalanced sources it is recommended that high quality twisted pair cable be used Diagram B shows an unbalanced source connected to the balanced XLR input of the LSR monitor using twisted pair cable Note that the shield is connected to the GROUND SHIELD connector at the LSR input but not at the source This reduces the likelihood of introducing a ground loop into the system Sine Unbalanced Source LSR XLR Input Diagram B When using unbalanced signals with an LSR6328P it is recom mended to use a 1 4 Tip Ring Sleeve connections Diagram C shows when using the 1 4 Tip Ring Sleeve connection the GROUND should be tied to the source not the
19. age to Pin 2 of the XLR or the tip of the 1 4 jack will produce a forward motion in the low frequency cone Shown below in Figures C and D are views of the rear electronics panel on the LSR6328P and a sig nal flow diagram for the system We recommend that you study these drawings in detail Figure D Trim factory set 2nd order 2nd order HPF Bypass 24 dB octave LSR6328P Biamplified Studio Monitor System AC Power Connections The LSR6328P can accommodate power from 100 to 250 VAC 50 60 Hz by way of an autosensing power supply This requires no atten tion on the part of the user The ground terminal of the IEC plug is required by wiring codes and regulations It must always be connected to the electrical installa tion safety ground The LSR6300 Series models have carefully designed internal grounding and balanced inputs and outputs to reduce the possibility of ground loops hum If hum or buzz occur see Appendix A for suggested correct audio signal wiring and system grounding Audio Level Adjustment The audio level sensitivity of the LSR6328P can be adjusted for almost any situation Monitor outputs of consoles and work stations are normally at a nominal level of 4 dBu or 10 dBV The LSR6328P can be set up for fixed or variable gain As shipped from the factory a nominal signal input of 10 dBV 0 3 volts will produce an output of 94 dB SPL at 1 meter in an anechoic environment This allows the user to get a good match when
20. d RMC These enable the width frequency and depth adjustments to be made when using RMC The make up gain control is used for making an overall adjustment for approximately equal loudness for com parisons with and without the RMC function Details of operation are covered in the User Guide included in the RMC Calibration Kit LSR6312SP Powered Studio Subwoofer System System Configuration Center Right Direct LFE in t ou Right Rear Left Rear Appendix A Wiring Requirements For optimum performance some attention to wiring details now can reduce system degradation later The cabling recommendations given below follow standard wiring practice for differential inputs Balanced Sources The best way to run your system is balanced where both HOT and COLD signals are supplied from the source along with a GROUND SHIELD These are typically carried on 2 conductor shielded cables with XLR connectors on both ends Alternatively connectors with Tip Ring and Sleeve T R S jacks can be used Whenever possible the cable shield should not be con nected to any signal pin but left to perform a cable shielding function only Note Under no circumstances should the safety ground wire be removed from the AC power connector When using balanced sources with the LSR6328P either the XLR or T R S input of the Neutrik Combi connector can be used since the circuit is common to both The difference between the two is that the
21. dB LF Sensitivity 4 dBu Polarity Reverse 10 dBv 4 8 12 dBu In Out LF Alignment 0 4 dB RMC Defeat In Out Remote RMC Defeat Connector Subwoofer Bypass Connector G tip sleeve jack G tip sleeve jack RMC Frequency Adjust 26 Hz 96 Hz 21 centers RMC Depth Adjust 0 14 dB cut only 21 steps RMC Q Adjust Physical 1 20th to 1 2 Octave 21 steps RMC Mter Up Gain 6 dB 21 steps Finish Smooth dark graphite Enclosure Construction Mounting 19 mm l in MDF 4 threaded mounting points conforming to industry standard square pattern 127 x 70 mm 5 x 2 75 in center to center M6 metric threads Baffle Material Injection molded structural ABS Enclosure Volume net 50 liter 1 8 cu ft Net Weight 22 7 kg 50 Ib Dimensions WxHxD 63 5 x 39 4 x 29 2 cm 25 0 x 15 5 x 11 5 in Caution Unsafe mounting or overhead suspension of any heavy load can result in seri ous injury and equipment damage Mounting of speakers should be done by qualified persons in accordance with all applicable local safety and construction standards Be certain to follow the instructions provided by the manufacturer of the mounting brack et Before selecting a mounting bracket be certain that it is capable of supporting the weight of the speaker to be mounted 20 100 Frequency 1000 Hz 10000 Notes 1 Left cen
22. dB Bass Alignment RMC Defeat Low Frequency Adjustment Switch 4 reverses the polarity of the LSR6312SP At the crossover point between the subwoofer and satellite speakers it is important that all systems be in correct polarity If the subwoofer and the satellite woofers are in the same vertical plane the polarity should be set to normal If the subwoofer is not in the same plane as the satellites the polarity may need to be reversed To check this put on a recorded track that has a good amount of bass and switch between the two positions The setting that produces the most bass should be the one to use Boundary Compensation The low frequency response of the LSR6312SP can be adjusted to compensate for placement near boundaries in the room Bass frequencies below 80 90 Hz are essentially omnidirectional Positioning subwoofers in corners or against walls will increase the in room efficiency of the system allowing greater apparent output Placing subwoofers against wall boundaries will also reduce frequency response variations due to cancellation interference The Bass Alignment switches compensate for subwoofer location by adjusting the amount of low frequency power generated below 50 Hz Using a sound level meter a technique that has been used successfully is to put the subwoofer in the listening position and move the meter or yourself into possible subwoofer locations Finding the positions with the greatest low frequency energy can quickly be f
23. ements B Mounting Specifications C RMC Room Mode Correction System Specifications Specifications LSR6328P LSR6332 LSR6312SP Warranty Statement JBL Professional Contact Information ccc ccccccccssscceeesscccssssssessecsesssssessecsesseseeesss Seen eee 12 15 12 13 14 16 17 18 18 Introduction Congratulation on your purchase of LSR6300 Studio Monitors All LSR6300 models incorporate proprietary and patented JBL transducer and network technologies to provide ultra accurate response and exceptional SPL capability Because production rooms are acousti cally less than perfect JBL has incoporated technologies in the LSR6300 Studio Monitors to overcome problems in the room The result clear accurate sound at the listening position in any room LSR6300 Features to Overcome the Problems in the Room LSR Linear Spatial Reference Technology JBL developed Linear Spatial Reference Technology to improve mid and high frequency accuracy at the listening position where reflect ed sound comes into play By meeting frequency response criteria for seventy two off axis measurements the LSR6300 Studio Monitors ensure that not just the direct sound but the reflected sound that reaches you at the listening position is also smooth and accurate RMC Room Mode Correction The LSR6328P and LSR6312SP Subwoofer are equipped with RMC JBL s method of zeroing out bass problems at the listening posi tion caused by room modes The L
24. es Hawaii or Alaska This Warranty does not apply to JBL products purchased elsewhere except for purchases through military outlets Other purchasers should contact the local JBL distributor for warranty information and B The original dated bill of sale is presented whenever warranty service is required The JBL Limited Warranty on professional loudspeaker products except for enclosures remains in effect for five years from the date of the first consumer purchase JBL amplifiers are warranted for three years from the date of original purchase Enclosures and all other JBL products are warranted for two years from the date of original purchase What does the JBL Warranty cover Except as specified below your JBL Warranty covers all defects in material and workmanship The following are not covered Damage caused by accident misuse abuse product modification or neglect damage occurring during shipment damage resulting from failure to follow instructions contained in your Instruction Manual damage resulting from the performance of repairs by someone not author ized by JBL claims based upon any misrepresentations by the seller any JBL product on which the serial number has been defaced modified or removed Who Pays for What JBL will pay all labor and material expenses for all repairs covered by this warranty Please be sure to save the original shipping car tons because a charge will be made if replacement cartons are requested Payment
25. g 13 Carts and Stands The appliance should be used is required when the apparatus does not operate normally or has been damaged in any way including power supply cord or plug is dam aged water or other liquid has been spilled or objects have fallen into the apparatus only with carts or stands that are sturdy and well balanced All appliance and cart combinations should be moved with care Quick stops excessive force and uneven surfaces may cause the appliance and cart combination to overturn 14 Fire No naked flame sources such as lighted candles should be placed on the surface of the apparatus 15 Coupler The appliance coupler is used as the disconnect device and the appliance coupler shall remain readily operable Explanation of Graphic Symbols The exclamation point within an equilateral triangle is intended to alert the users to the presence of impor tant operating and maintenance servicing instruc tions in the literature accompanying the product The lightning flash with the arrowhead symbol with in an equilateral triangle is to alert the user to the presence of insulated dangerous voltage within the products enclosure that may be of sufficient magni tude to constitute a risk of electric shock to humans CAUTION TO REDUCE THE RISK OF ELECTRONIC SHOCK DO NOT REMOVE COVER NO USER SER VICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL DO NOT EXPOSE THIS APPA RATUS TO R
26. in Differential Drive with dynamic braking coil Magnet Type Ferrite with integral heat sink Cone Type Carbon fiber composite Impedance 2 ohms High Frequency Model O53TiS Diameter 25 mm 1 in diaphragm Voice Coil 25 mm 1 in Magnet Type Ferrite shielded Diaphragm Type Damped titanium composite Other Features Elliptical oblate spheroidal waveguide Impedance 4 ohms Amplifier Low Frequency Topology Class A B all discrete Sine Wave Power Rating 250 watts lt 0 1 THD into rated impedance THD N H Power lt 0 05 High Frequency Topology Class A B monolithic Sine Wave Power Rating 120 watts lt 0 1 THD into rated impedance THD N H Power lt 0 05 Physical Finish Smooth dark graphite Handles 2 each flush mounted on sides Mounting 4 threaded mounting points conforming to industry standard square pattern 127 x 70 mm 5 x 2 75 in center to center M6 metric threads Enclosure Volume net 28 liter 1 cu ft Low Frequency Vent Rear ported linear dynamics aperture integrated with amplifier heat sink Baffle Construction Injection molded structural ABS Enclosure Construction 19 mm G in MDF Net Weight 17 7 kg 39 Ib Dimensions WxHxD 406 x 330 x 325 mm 16 x 13 x 12 8 in Caution Unsafe moun
27. nclude six discrete channels left center right defeat patonmen left surround right surround and subwoofer These are S4 S6 SS termed 5 1 for the five main channels and the dedicated Se eOe alam RN point one subwoofer channel which is also called the low frequency effects or LFE channel Not all program Figure J material makes use of all channels and mixing engi neers have the discretion to use or not use the subwoofer channel The Left Center and Right channels are routed to the respective LSR6312SP inputs and on to the front channel LCR speakers The LFE channel is sent directly to the Direct input of the LSR6312P When not in bypass mode the system operates as the stereo and Prologic setups previously described All subwoofer information is derived from the front channels and the Direct subwoofer input When a con tact closure occurs the high pass filtering is bypassed to the satellites and the satellites then receive the original full range signal The sub woofer feed from the Direct LFE input remains active Nominal Configuration Input Sensitivity 10dBV Bass Alignment Flat SHOCK HAZARD DO NOT OPEN f RISQUE DE CHOC ELECTRIQUE Polarity Normal NE PAS OUVRIR RMC Defeated Make up O eee na 6 dB Switch Summed LCR f f Out Bypass See RMC Instructions before enabling Serial No Closed Contact L c R Signals JBL PROFESSIONAL Pass Straight Through Without Filtering Northridge CA USA O Sub Driven
28. nics supply 4th order electroacoustic slopes to the low pass subwoofer transition to reduce the possibility of audible localization of the subwoofer This allows greater flexibility in placement for optimum operation in a wide variety of rooms Since low frequency energy supplied by the LSR6312SP is essentially omnidirectional placement of the unit s is more dependent upon room acoustics and interaction than localization issues The active electronics includes switchable high pass filters for the front satellite speakers This option is used to filter low frequency information from the front speakers and redirect this information to the subwoofer This is usually the case when the front speakers cannot reproduce extended low frequency information at the desired sound pressure level or to optimize the low frequency perform ance of the system in the room Alternatively if the front channels are operated in full range the bypass function can be enabled allow ing the subwoofer to be muted The bypass function allows the LSR6312SP direct LFE input to remain active RMC Equalization There are three screwdriver adjustable controls on the rear panel of the LSR6328P indicated RMC The term RMC stands for Room Mode Correction which consists of a single section cut only parametric equalizer that can be adjusted in frequency width Q of cut and the amount of cut It is used to reduce the magnitude of any dominant low frequency peak in response due to standing
29. o achieve optimal symmetrical response in the vertical plane both magnitude and phase compen sation are implemented in the crossover network The crossover network allows the user to adjust the high frequency level above 3 kHz This allows the listener to compensate for effects of near field or mid field spectral balance or differing amounts of high frequency absorption Components used in the crossover are exclusively low loss metal film capacitors low distortion electrolytic capacitors high Q high saturation current inductors and high current sand cast power resistors The mid and high frequency transducers are magneti Cally shielded to reduce interference when used in close proximity to CRT video and computer monitors Audio Connections The LSR6332 is equipped with two pairs of 5 way binding posts The lower pair feeds the woofer and the top pair feeds the mid and high frequency elements The connectors are designed to accept up to 10 AWG bare wire Spacing of the two input terminal pairs allows use of standard Dual Banana jacks The two pairs are normally connected together with metal shorting bars This allows either pair to be used in normal operation Alternative cabling possibilities include passive bi amping or using both terminals to get more copper from the amplifier to the speaker Positive voltage to the Red terminal will produce a forward motion at the low frequency cone High Frequency Adjustments The LSR6332 High Frequency le
30. ound After you find a couple of possibilities move the subwoofer into one of these locations and evaluate it e Switch 5 reduces the level below 50 Hz by 4 dB This position is designed to offer maximally flat response when the LSR6312SP is placed at the intersection of two boundaries such as a floor and wall e Switch 6 disengages the RMC function LCR Bypass The 1 4 jack used for LCR bypass and discrete selection operates with a simple dry contact closure between the tip and sleeve of the jack This function can be controlled remotely by using a tip sleeve plug and two conductor cables and shorting the two conductors together using a simple remote switch The sleeve of this connector is tied to audio ground so care should be taken to avoid ground loops when using this option LED Indication A multicolored LED indicator is located on the front of the LSR6312SP In normal operation this LED will be GREEN When the LSR6312SP is in Bypass mode the LED will turn AMBER This indicates that the high pass filters on the three LCR output are bypassed and that the subwoofer feed is from the direct alone At the onset of amplifier limiting the LED will flash RED Continuous RED flashing of this LED indicates that the levels should be reduced RMC Equalization RMC Room Mode Correction is used to reduce the effects of unfriendly standing waves at the mix position There are four screwdriver adjustable controls on the rear panel of the LSR6312SP indicate
31. ovements New mate rials production methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy For this reason any current JBL product may differ in some respect from its published description but will always equal or exceed the original design specification unless otherwise stated Specifications LSR6332 Input Impedance Nominal 4 ohm Anechoic Sensitivity 93 dB 2 83 V 1 m 90 dB 1 W 1 m Frequency Response 60 Hz 22 kHz 1 1 5 dB Low Frequency Extension 3 dB 10 dB 54 Hz 35 Hz Enclosure Resonance Frequency 33 Hz Amplitude amp Phase 100 Long Term Maximum Power IEC265 5 200 W continuous average 800 W peak Recommended Amplifier Power 150 W 1000 W rating into 4 ohm load High Frequency Control 2 5 to 20 kHz 0 dB 1 dB H 100 SPL 8 T o hase H 200 g 8 Distortion 96 dB SPL 1 m Low Frequency below 120 Hz 2nd Harmonic 3rd Harmonic Mid and High Frequency 120 Hz to 20 kHz 2nd Harmonic 3rd Harmonic lt 1 5 lt 1 lt 0 5 lt 0 4 Distortion 102 dB SPL 1 m Low Frequency below 120 Hz 2nd Harmonic 3rd Harmonic Mid and High Frequency 80 Hz to 20 kHz 2nd Harmonic lt 1 5 lt 1 lt 1 3rd Harmonic Power Nonlinearity 20 Hz to 20 kHz 30 Watts 100 Watts
32. owest elevation to maximize sight lines and reduce shadow ing of soffit mount monitors In applications where vertical orientation is desired the entire mid and high assembly can be rotated 90 to a vertical line array position as shown below in Figure B Figure B Getting Started The LSR6312SP can be placed in either a vertical or horizontal orientation More important than orientation is the physical position in the room Angling toward the listening position The LSR6300 Series monitors should be angled to directly face the listener The center of the high frequency transducer should be on axis with the ear level of the listener Ideally full range speakers should be placed on suitable speaker stands away from boundaries The LSR6312SP Subwoofer can be located on the floor with its woofer cone on the same plane as the woofer cones of the full range speakers Alternately the Subwoofer performance can benefit from placement close to a wall or corner LSR6328P and LSR6312SP models include Boundary Compensation settings when speakers are placed in close proximity to walls corners and work surfaces Audio Connections Refer to individual model specific instructions Power Connections The LSR6328P can be used with multiple AC supply voltages around the world It will automatically adjust for operation from 100 to 240 VAC with no intervention by the user The ground terminal of the IEC plug is required by wiring codes and regulations It mu
33. rivers carelessly handled Even with efficient magnetic struc tures there is always a small amount of leakage flux in the neighborhood of the voice coil gap which will attract hand tools and any nearby iron material Dented cones or domes are not covered under warranty 1 Place the LSR6332 on its back on a stable work surface 2 Carefully remove the eight Allen Hex socket screws surrounding the Mid High sub baffle and pull the unit out entirely 3 Gently lift the baffle out enough to rotate the assembly You can use your hand in the port to assist Do not pull the unit out entirely This avoids unnecessary tension on the cabling assemblies 4 Replace the eight screws and tighten Again take note to be VERY careful to guard against transducer damage LSR6312SP Powered Subwoofer System The LSR6312SP Active Subwoofer consists of a Neodymium Differential Drive NDD 12 neodymium woofer integrated with a powerful 260 watt continuous power output amplifier The active drive circuitry has been developed to maximize the acoustic output power while maintaining overall low distortion and excellent transient performance The enclosure is manufactured with a molded baffle and rigidly braced MDF enclosure for low resonance and minimal box loss The Linear Dynamics Aperture LDA Port design minimizes port turbulence and eliminates port compression Active crossover electro
34. s audible distortion at maximum levels The cone is made of a carbon fiber composite forming a rigid pis ton and is supported by a soft butyl rubber surround The high frequency device is a 1 composite diaphragm integrated with an Elliptical Oblate Spheroidal EOS Waveguide with 100 by 60 dispersion which is critical to the smooth spatial response required in today s working environments The magnetically sheilding of the HF transducer reduces interference when used in close proximity to CRT video and computer monitors This custom power supply eliminates all tonal artifacts produced by the speaker when idling Audio Connections LSR6328P Audio Connections The LSR6328P comes with a Neutrik Combi connector that accommodates either an XLR or 1 4 con nector in either balanced or unbalanced configurations The system has switchable input sensitivity 4 dBu 8 dBu and 10 dBV These sensitivities are determined by adjusting the DIP switches according to the legend shown in Figure C When the sensitivity is set for say 4 dBu an input signal equal to 4 dBu will produce a system output level of 96 dB SPL at a distance of one meter Likewise settings of 8 dBu and 10 dBV will cause those input levels to attain the output acoustic level of 96 dB SPL An additional switch allows user adjustable input sensitivity via a screwdriver control on the back panel See Section 4 for additional information on level control and gain matching Positive volt
35. sary to produce the stated A weighted SPL at the stated measurement distance Distortion figures refer to the maximum distortion measured in any 1 10th octave wide band in the stated fre quency range Power nonlinearity figures based on the A weighted deviation from linear increase in SPL with linear increase in input power i e power compression measured after 3 minutes of continuous pink noise excitation at the stated power input JBL continually engages in research related to performance improvements New mate rials production methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy For this reason any current JBL product may differ in some respect from its published description but will always equal or exceed the original design specification unless otherwise stated Specifications LSR6312SP Frequency Response 6 dB 28 80 Hz Low Frequency Extension 3 dB 10 dB User controls set to default 34 Hz 26 Hz Enclosure Resonance Frequency 28 Hz Low To High Crossover Frequency 80 Hz 4th order electroacoustic Linkwitz Riley Distortion 96 dB SPL 1 m Low Frequency lt 80 Hz 2nd Harmonic 3rd Harmonic lt 2 lt 1 Amplitude amp Phase 8 Maximum Continuous SPL gt 112 dB SPL 1 m 35 Hz 80 Hz Maximum Peak SPL gt 115 dB SPL 1 m 35 Hz 80 Hz Calibrated Input Sensitivit
36. sleeve of the LSR input for optimum performance Unbalanced Source LSR28P T R S Input Diagram C Appendex A Diagram D details the connections using single conductor shielded cable with a Tip Ring Sleeve plug for the 6328P input Single con ductor cable should be used as a last resort as it provides the greatest likelihood of problems The HOT signal should be connect ed to the tip of the Tip Ring Sleeve plug The GROUND should be attached to the Ring of the Tip Ring Sleeve plug at the 6328P input Unbalanced Source LSR Input TT Diagram E details the connections using unbalanced cable and Tip Sleeve connections to the 1 4 input In this mode the Ring and Sleeve of the input are shorted by the plug automatically Diagram D Unbalanced Source LSR T R S Input D Tip i Sleeve Unbalanced Tip Sleeve Connectors short the Ring and Sleeve Automatically Diagram E Appendix B Mounting Specifications for LSR6328P LSR6332 and LSR6312SP Mounting points are provided for use with readily available industry standard mounting brackets Mounting points are located on the bottom of the LSR6328P and rears of the LSR6332 and LSR6312SP models Fasterner specifications Type M6 metric thread 7 9mm 69 9mm Length 38 1 mm 1 5 in plus the thickness of the mounting plate 0 31 in TTT Se 2 75 in Hole Pattern E r 127 mm Caution Unsafe mounting or overhead suspension of any
37. st always be connected to the electrical installation safety ground The LSR6300 Series units have carefully designed internal grounding and balanced inputs and outputs to reduce the possibility of ground loops hum If hum occurs see Appendix B for suggested audio signal wiring system grounding hints and other preventive measures The LSR6312SP is set at the factory for use with either 100V 125V or 200V 250V Voltage is not field selectable Making Sound After connections are made the next step is to power up all equipment before powering up active LSR6300 speakers and external amplifiers Reduce the level of the monitor outputs of your console or preamp to minimum and turn on the powered speakers and the amplifiers There is a small delay with the power up of the LSR6328P and LSR6312SP to accommodate for clicks and thumps from upstream equipment When the Green LED on the front panel turns on the units are ready to go Slowly advance the gain of the console to feed the monitoring system to suitable listening level and enjoy Figure C O O With Differential Drivel Transducer Technology O mae LSR6328P Bes at AT ee aa ie See Owners Yy Fj er an oreign atents Bt ing SHOCK HAZARD DO NOTOPEN Manual For Set Up JBL Linear Spatial Reference PRS ae saps NOTOPEN ji sps NE PAS OUVRIR and Safety Instructions Bi Amplified Monitor O l O Input Option Active Trim With Switch Up she sil ile mo O O Se gt A E gt A Enable O zO mmm 7 aE
38. t Option Active Trim With Switch Up a OTIT Left In Left Out Centerin Center Out Rightin Right Out IBL LSR6312SP va ETEN Ae JBL Linear Spatial Reference Sani antenin Powered Subwoofer a Bea Defeat PROFESSIONAL O LSR6312SP Powered Subwoofer System There are several ways to connect the LSR6312SP in a monitoring system including stereo multi channel for mats such as Dolby ProLogic AC 3 DTS and others The bass management system in the LSR6312SP pro vides the flexibility to switch between configurations Left in Left out Center in Center out 1 4 tip sleeve jack In a Stereo Configuration it is typical to feed the l LSR6312SP with the left and right channels and take eeen A the left and right outputs from the LSR6312SP and feed Inserting shorted jack them to the satellites The high pass filters on the sub a ee woofer outputs remove the low frequency signal below Summed 85 Hz from the satellites This signal is then redirected Dieetin on 2 to the subwoofer gt b za Trim cou eeu For chaining more The Dolby ProLogic format uses a similar connection Say eae i 10 a niiit scheme to the one above The left center and right 1 2 3 channels route to the left center and right inputs of the LSR6312SP and through the respective outputs to the satellites Signals below 85 Hz are filtered out of the satellites and sent to the subwoofer Other multichannel formats such as Dolby AC 3 and DTS may i
39. ter and right input 2 Produces quasi fourth order Linkwitz Riley acoustic high pass alignment when used with LSR6328P or LSR6332 All measurements unless otherwise stated made anechoically in a 4p environment at 2 meters and referenced to 1 meter by the inverse square law The reference measurement microphone position is located perpendicular to the upper edge of the center of the woofer trim ring Acoustic loading provided by the listening room will increase maximum SPL capability and low frequency bass extension as compared to stated anechoic values Distortion measurements performed with the input voltage necessary to produce the stated A weighted SPL level at the stated measurement distance Distortion figures refer to the maximum distortion measured in any 1 10th octave wide band in the stated frequency range JBL continually engages in research related to produce improvement New materials produc tion methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy For this reason any current JBL product may differ in some respect from its published description but will always equal or exceed the original design specifications unless otherwise stated Warranty Statement Who Is Protected by This Warranty Your JBL Warranty protects the original owner and all subsequent owners so long as A Your JBL product has been purchased in the Continental United Stat
40. ting or overhead suspension of any heavy load can result in seri ous injury and equipment damage Mounting of speakers should be done by qualified persons in accordance with all applicable local safety and construction standards Be certain to follow the instructions provided by the manufacturer of the mounting brack et Before selecting a mounting bracket be certain that it is capable of supporting the weight of the speaker to be mounted Amplitude amp Phase 100 300 Frequency 1000 Hz 10000 20K 96 dB 1 m Distortion raised 20 dB Frequency 1000 Hz Notes All measurements unless otherwise stated made anechoically in a 4p environment at 2 meters referenced to 1 meter by inverse square law The reference measurement microphone position is located perpendicular to the cen terline of the low and high frequency transducers at the point 55 mm 2 2 in below the center of the high frequency diaphragm Acoustic loading provided by the listening room increases maximum SPL capability and low frequency bass extension as compared to stated anechoic values Distortion measurements performed with the input voltage necessary to produce the stated A weighted SPL at the stated measurement distance Distortion figures refer to the maximum distortion measured in any 1 10th octave wide band in the stated fre quency range JBL continually engages in research related to performance impr
41. ug does not fit into your outlet consult an electrician for replacement of the obsolete outlet All powered products are fitted with a detachable power cord supplied which connects to the chassis AC connector The power cord has an IEC female connector on one end and a male mains con nector on the other end This cord is supplied specifically to accom modate the different safety and electrical code requirements of indi vidual countries If you are traveling abroad with your system test the poe mains and be aware of any specific voltage requirements efore operating your system Options Only use attachments or accessories specified by JBL Professional 10 Wall or Ceiling Mounting The appliance should be mounted on a 1 wall or ceiling only as recommended by the manufacturer Caution Unsafe mounting or overhead suspension of any heavy load can result in serious injury and equipment damage Mounting of speakers should be done by qualified persons in accordance with all applicable local safety and construction standards Be certain to follow the instructions provided by the manufacturer of the mounting bracket Before select ing a mounting bracket be certain that it is capable of supporting the weight of the speaker to be mounted Non use Periods Unplug this apparatus during lightning storms or when it will be unused for long periods of time 12 Servicing Refer all servicing to qualified service personnel Servicin
42. una lista completa de los distribuidores de JBL International HF PROFESSIONAL
43. vel can be adjusted to compensate for placement or for bright rooms The unit is shipped in the flat or 0 dB position If the system sounds too bright in your room or if you are working very close to the monitors under 1 1 5 meters the response above 2 kHz can be reduced by approximately 1 dB as shown in Figure H Figure H 0 dB 1 dB i i i F l BEE T i 10 20 100 Frequency 1000 Hz 10000 20K LSRG6G332 Studio Monitor System This adjustment is accomplished via the barrier strip on the back of the enclosure located above the dual pair of 5 way binding posts Moving the link between the 0 and 1 dB positions will change the high frequency drive level Please note that the loudspeaker should be disconnected from the amplifier during this procedure for safety of the system Changing Mid High Orientation The LSR6332 is normally used in the horizontal position with the mid and high frequency elements toward the middle This provides the lowest elevation maximizes sight lines and reduces shadowing effects of soffit mount monitors In situations where vertical orienta tion is desired the entire Mid High sub baffle can be rotated There are both Left and Right models of the LSR6332 so that absolute symmetry can be maintained in all orientations NOTE The mid and high transducers can be easily damaged by screwd
44. waves at the listening position Details of Room Mode Correction are presented in the user guide included with the RMC Claibration Kit Audio Connections The LSR6312SP subwoofer contains both input and output XLR connectors for three channels which are typically Left Center and Right An additional direct input is included which is active at all times It This allows routing for a separate signal directly to the input electronics of the LSR6312SP as well as the summed low frequency response of the Left Center and Right inputs The inputs are shipped with a sensitivity of 10 dBV but this can be changed 0 4 dBu 8 dBu or 12 dBu by moving a dip switches on the back of the unit A 12 dBu variable input trim can be switched in to calibrate input sensitivity to a precise setting The outputs transmit either full range or high passed program information depending on the mode of the subwoofer The summed output transmits a sum of the L C R and Direct input signals with no processing to allow chaining of multiple LSR6312SP subwoofers Positive voltage to Pin 2 of the XLR will produce a forward motion in the low frequency cone Shown below in Figures and J are views of the rear electronics panel on the LSR6312SP and a signal flow diagram for the system We recommend that you study these drawings in detail Figure With Differential Drive Transducer Technology U S Patent Nos 5 748 760 and 5 828 767 Other U S and Foreign Patents Pending Inpu
45. y XLR or G Selectable 10 dBV 4 dBu 8 dBu 96 dB 1m Power Nonlinearity 20 Hz 200 Hz 30 Watts 100 Watts lt 0 4 dB lt 1 0 dB SPL 8 Power Clip Bypass Indicators Green LED normal operation Amber LED bypass mode Red LED Limiter activated Amplifier Low Frequency Topology Class A B all discrete Sine Wave Power Rating 260 watts lt 0 5 THD into rated impedance THD N H Power lt 0 05 AC Input Voltage 115 VAC 60 Hz 230VAC 50 Hz model LSR6312SP 230 AC Input Voltage Operating Range 15 Transducer Low Frequency Model 252F Diameter 300 MM 12 in Voice Coil 50 mm 2 in Differential Drive with dynamic braking coil Magnet Type Neodymium with integral heat sink Frequency 1000 Hz 10000 20K 96 dB 1 m Distortion raised 20 dB ANLA ml pn Re a eae ees Pe en eee on ui SPL dB 2nd a 3rd Cone Type Carbon fiber composite Impedance User Controls Inputs and Outputs 2 ohms Left Center Right and Direct Inputs Neutrik Combi XLR G Left Center and Right Outputs Neutrik XLR balanced pin 2 hot Low Frequency Summed Output Remote Bypass Connector Neutrik XLR balanced pin 2 hot G tip sleeve jack Direct Input LFE 10 dB Push on push off switch LF Output Trim 0 to 13
Download Pdf Manuals
Related Search