JBL LS Series LSR305/230 loudspeaker
Contents
1. Save the cartons and use the above procedure in reverse when you want to repack the units for shipment LSR310S Subwoofer The subwoofer weighs 19 kg 42 lbs Unpacking the subwoofer does not require you lift the subwoofer However you will need to rotate the subwoofer in the carton lf you are unable to perform the following steps without assistance please request help from another person Remove the outer shipping carton if one exists Place the carton on the floor with the bottom facing upward Open the bottom flaps of the carton and remove any protective packing materials from the bottom of the subwoofer Open the bag that protects subwoofer exposing the subwoofer s four feet Gently rotate the carton so the bottom of the carton is facing the floor and the four feet of the subwoofer are in contact with the floor Gently lift the carton allowing the subwoofer and protective packing materials to slide out of the carton and remain on the floor Remove the protective packing materials and documentation from the top of the subwoofer Save the cartons and use the above procedure in reverse when you want to repack the units for shipment PLACEMENT 3 Series speakers are designed to deliver exceptional imaging in any room To get the most out of your speakers follow these recommendations Locate the four self adhesive rubber pads supplied with LSR305 and LSR308 speakers Position and attach these to the bot2. 373 mm x 260 mm x 315 mm 14 69 in x 10 22 in x 12 4 in 6 kg 13 2 Ibs Full Bandwidth Pink Noise Measured C Weighted Measured in Half Space LSR308 37 Hz 24 kHz 1800 Hz 4th order acoustic Linkwitz Riley 112 dB SPL 6 dBV 20 3 dBu 1xXLR 1 x TRS Balanced 92 dB 1m 25 mm 1 203 mm 8 56W Class D 56W Class D 2 dB 0 2 dB 4 4 kHz 2 dB 0 2 dB 115 Hz 100 240 VAC 10 50 60 Hz 15 mm 5 8 in MDF Matte Black PVC Injection molded structural ABS Metallic Black Acrylic Paint 419 mm x 254 mm x 308 mm 16 5 in x 10 0 in x 12 1 in 8 6 kg 18 9 Ibs 473 mm x 312 mm x 358 mm 18 6 in x 12 2 in x 14 0 in 491mm x 326 mm x 371 mm 19 3 in x 12 8 in x 14 6 in 10 kg 22 Ibs LSR310S 27 Hz 113 dB 6 dBV 20 3 dBu 2 X XLR 2 x TRS Balanced 92 dB 1m 250 mm 10 200W Class D 100 240 VAC 10 50 60 Hz 18 mm 3 4 in MDF Matte Black PVC 448 mm x 381 mm x 398 mm 17 65 in x 15 0 in x 15 65 in 15 6 kg 34 3 Ibs 505 mm x 466 mm x 476 mm 19 9 in x 18 3 in x 18 7 in 520 mm x 478 mm x 488 mm 20 5 in x 18 8 in x 19 2 in 19 1 kg 42 Ibs 19 Section 9 JBL Service Contact Information 20 by HARMAN MAILING ADDRESS JBL Professional 8500 Balboa Blvd Northridge CA 91329 SHIPPING ADDRESS JBL Professional 8500 Balboa Blvd Dock 15 Northridge CA 91329 Do not return product to this address without first obta
3. JBL s Patented Slip Stream low frequency port design that works in concert with the woofer to produce deep bass response at all playback levels The double flared shape of the port is precisely engineered for greater low frequency extension and reduced turbulence Bi amplified Design with individual power amplifiers for the Low Frequency and High Frequency Transducers The design utilizes efficient high output Class D integrated power amplifiers to provide high SPL Sound Pressure Level for demanding production applications Soft dome magnetically shielded high frequency transducers with optimally damped materials to improve transient response and minimize distortion By reducing distortion in the lower operating range where the ear is most sensitive these transducers reduce ear fatigue Balanced XLR and 1 4 connectors a dented level attenuator to allow interface to a broad range of signal sources The 4 dB 10 dB input sensitivity switch allows connection of the speakers to high output professional equipment without danger of input overload High Frequency and Low Frequency Trim controls in the LSR308 and LSR305 allow adjustment of frequency response to preference or to compensate for acoustically reflective or absorptive listening environments Producing extended low frequency into the 20 Hz region the LSR310S is the perfect match for the LSR305 and LSR308 Studio monitors The LSR310S feature set includes A custom designed
4. Because the human ear cannot easily recognize where low freguencies are originating they are said to be non directional subwoofer placement is not nearly as critical as main channel speaker positioning The LSR310S is designed to be placed directly on the floor and not elevated or mounted in any way Set the POLARITY switch to the setting that yields a stronger perceived bass response at the listening position In a stereo system the subwoofer should optimally be placed between the two main speakers In a surround sound system the subwoofer should be placed between the center and left channel speakers or the center and right channel speakers Precise central placement is not necessary Centered positioning in the room can sometimes cause unwanted cancellation so it is recommended that the subwoofer be placed slightly off center and not at the midpoint between the left and right walls CROSSOVER SETTINGS AND BASS MANAGEMENT Bass management is a term that refers to the practice of using a subwoofer to reproduce the bass frequencies of the main channels Because of the physiology of the human ear low frequencies are largely non directional Given an adequate listening distance we can t easily tell where bass signals are coming from Thus it makes little or no difference to the listening experience whether the bass component in a sound comes from the originating speaker which may be off to your left or right or even behind you or f
5. LFE Channel 5 11 nh key 15 Systems Connections eig pe ak 16 17 Trouble Shootlng e ein eicere e e aie c t Deseret vines 18 lere RI 19 JBL Service Contact InformatiOn 11111 20 Product Warranty lnformation ST HT kh 21 Section 2 Introduction Congratulations on your purchase of JBL Professional 3 Series Studio Monitors These studio monitors and Subwoofer meet JBL s high standards for accuracy and long term reliability in demanding professional applications All 3 Series models incorporate JBL Professional transducer and network technologies to provide accurate frequency response exceptional low frequency extension and high SPL capability JBL LSR Linear Spatial Reference design ensures greater accuracy at the mix position in acoustically varied work spaces and production environments Additionally each speaker is equipped to interface with a range of signal sources including high output professional equipment JBL LSR Linear Spatial Reference Design Because listening environments vary JBL designed the 3 Series system using LSR Linear Spatial Reference design criteria that improve accuracy at the listening position in a broad range of rooms The key to accuracy is ensuring not just the on axis sound but also the reflected sound reaching the mix position is neutral While most manufacturers take only a single on axis m
6. preference the acoustics of your room and the maximum SPL Sound Pressure Level you want to hear at the listening position You can find the speaker s maximum SPL at 1 Meter in the Specifications Section at the end of this manual Each doubling of listening distance will reduce the SPL at the listening position by 6 dB in an acoustically absorptive room but only 3 or 4 dB in an acoustically reflective room LSR310S Subwoofer placement The low frequency driver of the 310S is mounted on the bottom panel of the subwoofer Before placing the subwoofer make sure the position on the floor is free of any large objects that can interfere with or damage the woofer In a stereo system The LSR310S Subwoofer should be placed directly on the floor located between the Left and Right Speakers In a surround sound system the subwoofer can be located between the Left and Center or between the Right and Center channel Speakers The distance of the subwoofer from the listening position can be adjusted to produce the optimum balance of bass in the system Placing the subwoofer close to a wall or in a corner generally will increase the amount of bass heard in the room Experiment to determine the Subwoofer placement that produces the best balance and quality of bass in the system Section 4 LSR305 and LSR308 Powered Studio Monitors SUB LFE SUB LFE A CENTER MIX POSITION LEFT RIGHT SURROUND SURROUND AUDIO CONNECTIONS The 3 Series Speak
7. EGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE JBL Professional 8500 Balboa Boulevard Northridge CA 91329 USA Visit us online at www jblpro com 21 Hear the truth H B L by HARMAN Part Number Rev 5041835A
8. POWERED STUDIO series MONITORS Owners Manual by HARMAN gt LSR305 LS5R308 LSR3 10S 5 Powered 8 Powered 10 Powered Studio Monitor Studio Monitor Studio Subwoofer Thank you for your purchase of JBL 3 Series Studio Monitors To receive important information as it becomes available please take a moment to register your 3 Series speakers now Click the link or go to www jblpro com 3series Section 1 Important Safety Instructions 10 11 12 13 14 15 Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with dry cloth Do not block any ventilation openings Install in accordance with manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus that produce heat Do not defeat the safety purpose of the grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularl
9. T PANEL Includes input connectors power connector and user controls 12 INPUT PANEL 6 RIGHT and LEFT XLR INPUTS RIGHT and LEFT 6mm 1 4 RIGHT and LEFT XLR OUTPUTS INPUT SENSITIVITY switch Set this switch to the 4 dBu setting when connecting professional equipment and sources with very high output NOTE When the LSR310S is used in a system with LSR305 and LSR308 set the INPUT SENSITIVITY switch on the LSR305 or LSR308 to the 10dBV setting regardless of the LSR310S input sensitivity switch setting 10 VOLUME CONTROL Use this control to balance the volume of the subwoofer with the volume of the speakers in the system 11 CROSSOVER FREQUENCY Three settings are provided 80 Hz XLF and External The 80 Hz setting is recommended for use with the LSR305 LSR308 and any studio monitors The External setting allows use of an outboard crossover Select the XLF Extended Low Frequency setting to activate a circuit that emulates the bass tuning commonly applied to playback systems in club environment o o N 12 POLARITY Enables optional 180 degree reversal of the subwoofer output to optimize the blend of the subwoofer with the main speakers according to relative positions of speakers and the listening position in the room Select the setting that produces the greatest amount of bass when heard at the listening position 13 POWER RECEPTACLE Connection for the power cord 14 POWER SWITCH Activates power for the subwoo
10. ate of original purchase 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 States Hawaii or Alaska This Warranty does not apply to JBL products purchased elsewhere except for purchases by 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 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 authorized 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 cartons because a charge will be made if replacement cartons are requested Payment of shipping charges is discussed in the next section of this warranty HOW TO OBTAIN WARRANTY PERFORMANCE If your JBL product ev
11. down firing High Excursion 10 woofer with an additional bucking magnet 200 Watts Class D Power Amplifier with abundant output and dynamic headroom for the most demanding production styles Patented Slip Stream Port The patented JBL low frequency port design works in concert with the 3 Series woofer for accurate bass response at all playback levels A detented volume control makes it easy to balance of the LSR310S in your studio monitor system Balanced XLR and 1 4 inputs and XLR outputs you can add the LSR310S to any studio monitor system to extend its low frequency performance or use it as the 1 LFE Channel in a surround sound system The 10 dBV 4 dBu sensitivity switch ensures compatibility with a broad range of signal sources allowing you to connect the LSR310S to high output professional eguipment without any danger of input overload Three Crossover settings 80 Hz XLF External The 80 Hz setting implements high and low pass filters to create a seamless blend of the LSR310S with JBL s LSR305 or LSR308 studio monitors or models from other manufacturers The external setting bypasses all filtering allowing use of an external crossover The special XLF setting activates a 120 Hz High Pass Filter in conjunction with a low freguency tuning that approximates the tuning used in club playback systems Using this setting the bass output more than doubles A protective limiting circuit allows the
12. easurement of the speaker s performance Linear Spatial Reference design criteria requires 72 measurements 360 degrees around the speaker yielding 1 200 times more data This data is used in the design of critical system components enabling JBL to engineer complete systems that deliver smooth off axis response The result clear accurate sound at the listening position in any room 3 Series Image Control Waveguide JBL s revolutionary Image Control Waveguide gives the LSR305 and LSR308 remarkable imaging a wide sound stage and a solid phantom center Subtle details can be heard even in a dense mix As an added benefit incorporating this waveguide 3 Series models give you a broad sweet spot in your work space so you don t have to be seated directly in front of the speakers to hear accurate natural and open sound 3 Series models include a range of features to meet the needs of demanding audio production applications LSR305 and LSR308 models include Low frequency magnetically shielded transducers equipped with 1 5 voice coils and robust motor structures to provide excellent low frequency performance By reducing thermal related effects the 3 Series Studio Monitors and Subwoofer sound the same at low medium and high levels The woofers are magnetically shielded to prevent interference with magnetically sensitive displays and equipment The woofer s self repairing dust dome is resistant to dents caused by fingers or external objects
13. ed to the inputs of the left and right speakers respectively POWER CONNECTIONS The 3 Series speakers incorporate a universal power supply allowing these to be used domestically and internationally The ground terminal of the IEC plug is reguired by wiring codes and regulations and must always be connected to the electrical installation safety ground 8 MAKING SOUND After connections are made reduce the output level of the audio source mixing console computer recording system or preamp to minimum Set the 3 Series POWER SWITCH to the ON position After a short delay the POWER INDICATOR on the front of each speaker will illuminate and the speakers will be ready to reproduce audio signals Power on connected audio eguipment and slowly advance the volume control of connected audio eguipment to achieve a suitable listening level Balance the subwoofer in the system using the rear panel VOLUME CONTROL on each speaker Additional balance of bass can be achieved by adjusting the placement of the subwoofer in the room Section 4 LSR305 and LSR308 Powered Studio Monitors Front View Back View 1 3 ae dug 4 5 8 E Ly FEATURES 1 2 HIGH FREQUENCY TRANSDUCER Tweeter Reproduces high frequency signals WAVEGUIDE The specially designed Image Contr
14. er needs service write or telephone us at JBL Incorporated Attn Customer Service Department 8500 Balboa Boulevard PO Box 2200 Northridge California 91329 818 893 8411 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 purchase 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 transporting 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 EXCLUSION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU THIS WARRANTY GIVES YOU SPECIFIC L
15. ers are equipped with balanced XLR and 6 mm 44 TRS inputs for connection to professional computer audio interfaces mixing consoles and audio production eguipment as well as unbalanced consumer audio products including personal music players consumer audio receivers and audio visual eguipment Connect professional equipment with balanced outputs to the XLR or 6 mm 4 TRS input of the speaker using balanced signal cables 3 Series speakers are equipped with an INPUT SENSITIVITY SWITCH The switch is set to the 10 dBV setting when it ships from our factory This setting will be best for many applications However you can set the switch to the 4 dBu setting When connecting 3 Series speakers to professional equipment with 4 dBu nominal output level set the INPUT SENSITIVITY SWITCH to the 4 dBu setting To determine the nominal output level of the connected equipment consult the documentation supplied with the connected equipment f you notice the sound is distorted set this switch to the 4 dBu setting When using the LSR310S in a system with the LSR308 or LSR305 studio monitors set the INPUT SENSITIVITY switch on the LSR305 or LSR308 to the 10dBV setting regardless of the LSR310S input sensitivity switch setting LSR310S Subwoofer connections The left and right outputs of the signal source should be connected directly to the LEFT and RIGHT INPUTS of the subwoofer The LEFT and RIGHT OUTPUTS of the subwoofer should be connect
16. es e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help CAN ICES 3 B NMB 3 B Contents Important Safety Instructions HH KH nennen 3 Introduction ren et e a edt Y c Pe Cere aes 5 6 Setting Up Your System HH HH H H HH SH 6 Whats Included cos ee iere itor fecistis 6 Ua ere i e H 6 Placement uet etu ee HF tuer iatis TH eed 7 Audio CONNECTIONS iia 8 Power Connections ejidales 8 Making SG iQ 9 LSR305 and LSR308 Powered Studio Monitors Front and Rear VieWS uma dad dt edy 10 Input Panel uu MM ed eeu Ae a 11 Audio CONNECTIONS 25 E Y I Pn EIN alee ace 11 LSR310S Powered Studio Subwoofer Front and Rear View wedai GLY ry etit eve uet o eae CYR YNYR LY SELYF EUO 12 Input Panel ttim trc a Phe n t a fies 13 Audio Connections ie ento eydy cepe ten Der E REEF aba 13 Setting Subwoofer Level 1n TH kh 14 Placement arid Polarity cn ned i NERALA NE ER 14 XLF Extended Low Freguency Setting Crossover Settings and Bass Management see 14 Surround Sound and 1
17. fer STUDIO MONITORS POWERED mm PROFESSIONAL 6 180 7 No aw TA 09 4dBu t0dBV 80Hz XLF Exemal a VOLUME Extended POLARITY Balanced INPUT Low Frequency Balanced SENSITIVITY CROSSOVER 12 9 11 10 m 14 LSR310S 10 SS S0swooren AUDIO CONNECTIONS Connect signal sources to either the XLR or 6 mm 4 INPUT CONNECTORS Connect a single signal source to the speaker using either the XLR INPUT CONNECTORS OR the 6 mm TRS INPUT CONNECTORS Do not connect multiple signal sources to the XLR and 6 mm 1 4 input connectors simultaneously When using the LSR310S in a Surround Sound System if the LSR310S Subwoofer is being used to reproduce the 1 LFE channel in a surround sound system connect the 1 LFE signal to either the LEFT or RIGHT input of the subwoofer 13 SETTING THE SUBWOOFER LEVEL When the LSR310S Subwoofer is used in a system with LSR305 or LSR308 speakers the ideal balance is achieved when the position of the volume control on the subwoofer is set to the same position as the volume control on the main speakers Placement of the speakers in the room can affect the amount of bass heard at the listening position If more or less subwoofer volume is desired you may use the volume control on the subwoofer to achieve the balance that works best for your application and taste PLACEMENT AND POLARITY SETTING
18. he production of dance music appreciate the ability to audition their work as it might sound when played on a system with enhanced low frequency tuning commonly employed in dance clubs A JBL first the LSR310S includes a special XLF Extended Low Frequency setting that emulates the response curve applied to a club playback system When the XLF crossover setting is selected a 120Hz High Pass Filter is engaged in conjunction with a 10 dB boost at 60Hz with a bandwidth of 0 5 octaves Using this setting the bass output more than doubles and the character of low frequency approximates that of a club system Continuous low frequency with very high peak SPL is made possible by JBL s new long excursion low frequency driver working in concert with JBL s patented Slip Stream Port design and powered by a 200 Watt class D amplifier A protective circuit allows the 310S to continuously produce low frequency at high output without failure In situations where positioning will allow an additional 6 dB of output can be achieved by positioning the LSR310S subwoofer adjacent to a wall or at the intersection of two walls 14 External Select this setting when connecting the subwoofer to an external bass management system When external is selected XLR left and right outputs are disabled SURROUND SOUND SYSTEMS AND LFE The LSR310S Subwoofer can be used to reproduce the LFE Low Freguency Effects or 1 channel in a surround sound system In film productio
19. ining prior authorization from JBL 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 PRODUCT REGISTRATION Register your product online at www jblpro com registration On The World Wide Web www jblpro com PROFESSIONAL CONTACTS OUTSIDE THE USA Contact the JBL Professional Distributor in your area A complete list of JBL Professional international distributors is provided at our U S A website www jblpro com EN DEHORS DES ETATS UNIS Contacter votre Distributeur JBL Professional Une liste compl 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 unserer 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 una lista completa de los distribuidores de JBL International Section 10 Product Warranty Information 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 d
20. n applications the LFE channel contains low freguency effects such as the sounds of explosions and other sounds with a strong low freguency component In music applications the LFE channel usually contains low freguency instruments such as bass bass drum and synthesizer elements 15 16 Section 6 System Connections TWO CHANNEL SYSTEMS LEFT RIGHT CHANNEL SPEAKER CHANNEL SPEAKER C CN NS pos SUBWOOFER o XS Y LSR310S 10 EES Rawooren NON ON ge i O53 DUO oo oo de eos oodd 1O lo SURROUND SOUND SYSTEMS LEFT CENTER RIGHT CHANNEL SPEAKER SPEAKER CHANNEL SPEAKER Tm Y ies um IS A ayas a a n HH Y e E SO 000000 HE le oo B COMPUTER AUDIO INTERFACE gt E COMPUTER AUDIO SYSTEM E LSR310S 10 FREE worn C Y LEFT RIGHT SURROUND SPEAKER SURROUND SPEAKER Section 7 Trouble Shooting 18 TROUBLE SHOOTING If there is no sound from your speakers check these settings Make sure a signal source i
21. ol Waveguide enhances imaging and optimizes the blend of direct and reflected sound in the room ensuring neutral sound at the mix position POWER INDICATOR llluminates when power is connected and the POWER SWITCH is set to ON Note after setting the power switch to ON there is a short delay prior to illumination of the LED LOW FREQUENCY TRANSDUCER Woofer Reproduces low frequency content of the input signal DUST DOME Protects the inner circuit of the woofer This self repairing dust dome is resistant to dents caused by fingers and objects LOW FREQUENCY PORT The patented Slip Stream Port works in conjunction with the low frequency transducer to provide accurate low frequency performance INPUT PANEL Includes input connectors power connector and user controls ENCLOSURE PADS Pads supplied with each monitor are user installed 10 INPUT PANEL 10 11 12 13 14 15 16 17 XLR INPUT Connect professional equipment using an XLR connector 6 mm INPUT Connect equipment using a 6 mm 14 balanced or unbalanced connector INPUT SENSITIVITY SWITCH Set this switch to 4 dBu to protect from overload when connecting to professional equipment and sources with very high output LOW FREQUENCY TRIM Allows boost or attenuation of low frequency output by 2 dB HIGH FREQUENCY TRIM Allows boost or attenuation of high frequency output by 2 dB VOLUME CONTROL Use this control to
22. panying the product The lightning flash with the arrowhead symbol within an eguilateral triangle is to alert the user to the presence of insulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to humans CAUTION TO REDUCE THE RISK OF ELECTRONIC SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE DO NOT EXPOSE TO RAIN OR MOISTURE Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This equipment has been tested and found to comply with the limits for a class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measur
23. rom a dedicated subwoofer which is better equipped and better positioned in the room to reproduce low frequencies than even a full range monitor For that reason you may want to use an LSR310S subwoofer to reproduce all the bass frequencies in your system If you are using an LSR310S Subwoofer in your system bass management is accomplished simply by routing your Left and Right mix channels to the Subwoofer inputs and then from the subwoofer outputs to the Left and Right speakers The frequency at which the subwoofer divides signals to the sub and the left and right speakers can be set using the Crossover Frequency selector switch on the input panel of the LSR310S Subwoofer The 80Hz filter setting is recommended when the goal is a full range reference monitor system that accurately portrays content below the cut off of the main speakers The 80 Hz crossover provides a smooth transition and between the subwoofer and the main speakers while optimizing the blend of low frequency in the system without audible localization of bass creating the perception of a full range system with no subwoofer To produce a smooth transition between the speakers and the subwoofer and the goal is an accurate representation of frequency response in the program material Two additional settings are provided XLF and External XLF A trend in music production is the requirement for enhanced low frequency response in the control room Artists and producers involved in t
24. s connected and producing sound Make sure the POWER INDICATOR is illuminated on the front of the speaker Make sure the VOLUME CONTROL is not set to the full counter clockwise minimum position e Confirm the power cable is connected and the POWER SWITCH is set to the ON position If the above measures do not correct the problem please contact JBL Professional Customer Service Section 8 Specifications Specifications Freguency Range Crossover Maximum Peak SPL Maximum Peak Input Level 10 dBV 4 dBu Input Connectors Input Sensitivity 10 dBV input HF Driver Size LF Driver Size HF Driver Power Amp LF Driver Power Amp HF Trim Control LF Trim Control AC Input Voltage Enclosure Construction Enclosure Finish Baffle Construction Baffle Finish Dimensions H x W x D Weight Display Carton H x W x D Shipping Carton H x W x D Shipping Weight LSR305 43 Hz 24 kHz 1725 Hz 4th order acoustic Linkwitz Riley 108 dB SPL 6 dBV 20 3 dBu 1 x XLR 1 x TRS Balanced 92dB 1m 25 mm 1 127 mm 5 41 W Class D 41 W Class D 2 dB 0 2 dB 4 4 kHz 2 dB 0 2 dB O 115 Hz 100 240 VAC 10 50 60 Hz 15 mm 5 8 in MDF Matte Black PVC Injection molded structural ABS Metallic Black Acrylic Paint 298 mm x 185 mm x 231 mm 11 75 in x 7 28 in x 9 88 in 4 6 kg 10 12 Ibs 354 mm x 244 mm x 299 mm 13 93 in x 9 6 in x 11 77 in
25. set the maximum listening level POWER RECEPTACLE Connection for the power cord POWER SWITCH Activates power for the system Balanced Input O 12 4dBu 10dBV 10 11 5 2 13 PIN 4 a Penal No 2dB 0 2dBll 2dB 0 2dBll3 8 g 4 1 10 15 2 14 JBL PROFESSIONAL Designed and Northridge CA U S A Engineered J Min Max HARMAN International Industries Inc in U S A Power AC 100 240 V 50 60 Hz 127 W Max 16 17 Ne NS AUDIO CONNECTIONS Connect signal sources to either the XLR or 6 mm 4 INPUT CONNECTORS Connect only a single signal source to the speaker using either the XLR INPUT CONNECTOR OR the 6 mm TRS INPUT CONNECTOR Do not connect multiple signal sources to both input connectors simultaneously 11 Section 5 LSR310S Powered Studio Subwoofer Front View Back View Bottom View Le b i FEATURES 1 LOW FREQUENCY TRANSDUCER WOOFER Reproduces low frequency signals 2 POWER INDICATOR llluminates when power is connected and the Power Switch is set to ON 3 FEET Elevate the subwoofer to prevent acoustic coupling with the floor 4 LOW FREQUENCY PORT Works in conjunction with the low frequency transducer to provide accurate low frequency performance 5 INPU
26. subwoofer to operate continuously at full output without failure JBL Professional Reliability Prior to becoming a production ready design each 3 Series model is subjected to JBL s tough 100 hour power test in which the speaker is reguired to play continually at full output for 100 hours without failure This demanding test ensures your 3 Series speakers will deliver years of reliable performance To get the most out of your JBL 3 Series please review this owner s manual and keep it on hand for future reference Also please register your new speakers at www jblpro com registration Section 3 Setting Up Your System Each 3 Series box includes the following items One 3 Series Studio Monitor or Subwoofer One Power Cord Quick Set Up Guide e SR308 and LSR305 include peel off rubber pads UNPACKING When removing a speaker from its packaging we recommend the following procedure which will prevent damage of the high frequency transducer located near the top of the cabinet on the front of the speaker LSR305 and LSR308 Remove the outer shipping carton if one exists Place the inner carton on the floor with the top facing upwards Open the top of the box Without removing the internal packaging end cap gently rotate the carton so the open end rests on the floor and the bottom of the carton is facing you Gently lift the carton allowing the speaker and protective end cap to slide out of the carton and remain on the floor
27. tom surface of the speaker close to each corner Position each LSR305 and LSR308 speaker in a vertical orientation with the tweeter on the top Vertical orientation eliminates phase shift and cancellation of frequency response that occurs when the distance of the woofer to the ear is different from the distance of the tweeter to the ear Angle the speakers so the high frequency transducer in each speaker is aimed directly towards the ear of the listener Ideally LSR305 and LSR308 Series speakers should be placed on suitable speaker stands rather than on the work surface This will reduce resonance and deterioration of low frequency performance that occurs through the speaker s mechanical coupling with the work surface For optimum imaging the left speaker and the right speaker should be placed symmetrically in the room so each speaker is the same distance from adjacent walls and reflective surfaces The speakers should be placed so the position of the listener and the two speakers form an equilateral triangle Adjusting the distance between the speakers will affect the quality of bass heard at the listening position You can experiment with speaker placement to find the placement that produces the preferred bass response imaging and when listening to stereo material produces a strong phantom center in which vocals and some instruments seem to originate from a point between speakers The listening distance can be determined according to your
28. y at plugs convenience receptacle and the point where the power cord connects to the apparatus Only use attachments accessories specified by the manufacturer Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way including power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped The appliance coupler of the power supply cord is used as the ultimate disconnect device from the mains The appliance coupler shall remain readily operable The apparatus shall be connected to mains socket outlet with a protective earthing connection WARNING To reduce the risk of fire or electrical shock do not expose the apparatus to rain or moisture The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids such as vases shall be placed on the apparatus As with any electronic product use care not to spill liquids into any part of the system Liquids can cause a failure and or a fire hazard Explanation of Graphic Symbols The exclamation point within an equilateral triangle is intended to alert the users to the presence of important operating and maintenance servicing instructions in the literature accom
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