Operating Manual - Neumann Studio Monitors
Contents
1. 1 Neumann logo 2 Treble driver e lights up white 3 Midrange driver loudspeaker is switched on and ready for operation 2 Bass driver flashes red loudspeaker s protection system is active output level is reduced or A digital signal is selected via the SIGNAL SELECT rotary switch 47 but there is no valid digital signal connected e lights up red electronic s temperature is too high output level is reduced by 20 dB You can adjust the brightness of the Neumann logo For more information refer to page 18 KH310 5 gt NEUMANN 8 Back panel 1 Back panel KH 310 D 6 KH 310 ACOUSTICAL CONTROLS aB OUTPUT LEVEL dB SPL at 1 m DISPLAY 4 a BRIGHTNESS 9 ANALOG INPUT socket XLR GROUND switch Connects disconnects ground DISPLAY BRIGHTNESS switch Dims the Neumann logo INPUT GAIN control OUTPUT LEVEL switch ee eo ACOUSTICAL CONTROLS aB DESIGNED IN GERMANY MADE IN IRELAND Georg Neumann GmbH Leipziger Str 112 10117 Berlin Germany 5 ANALOG INPUT socket XLR 6 GROUND switch Connects disconnects ground 7 DISPLAY BRIGHTNESS switch Dims the Neumann logo INPUT GAIN control 9 OUTPUT LEVEL switch amp oo ACOUSTICAL CONTROLS switches Threaded inserts for Neumann mounting hard ware Handles with mounting holes Cooling fins On off switch I O IEC mains socket ACOUSTIC2. 24 bit 22 05 24 32 44 1 48 64 88 2 96 176 4 192 18 dBFS 100 dB SPL at 1m gt 116 dB A 123 dB A lt 104 dB lt 106 dB typically 409 5 ms 140 87 m 462 2 10 2 at 40 ms frame 12 3 at 33 ms frame 0 1 ms 3 44 cm 1 3 8 1 84 msat 22 05 kHz 1 70 msat 24 kHz 1 28 msat 32 kHz 0 93 msat 44 1 kHz 0 86 msat 48 kHz 0 64 ms at 64 kHz 0 47 msat 88 2 kHz 0 43 ms at 96 kHz 0 24 ms at 176 4 kHz 0 22 msat 192 kHz 0 54 ms Neumann logo Red 1 flash Neumann logo Red continuous flashes KH 310 A 25 W KH 310 D 30W 300 W 253 x 383 x 292 mm 10 x 15 x 11 16 2 1 28 3 1 KH 310 A 13 0 kg 28 lbs 11 oz KH 310 D 13 1 kg 28 lbs 14 oz These are the sample rates for which the delay setting value shown on the back panel is valid Depending on the sample rate this value should be added to the delay setting on the back panel to give the total delay NEUMANN Drivers bass midrange treble Mounting points Cabinet surface finish Color Ambient temperature Relative humidity Power supply Ambient temperature Relative humidity Europe CE USA Canada magnetically shielded 210 mm 8t 75 mm 3 25 mm 1 2 x M8 thread on side panel depth 25 mm 1 Rear panel screws for attaching the LH 41 base plate Mounting holes in the handles Painted wood and polyurethane Anthracite RAL 7021 or other RAL color Rear panel Aluminium black anodized 10 C
3. NEUMANN gt KH 310A gt KH 310 D ACTIVE STUDIO MONITOR OPERATING MANUAL NEUMANN Contents Important safety instructions 2 The KH 310 studio monitor RII 4 Package lt 4 Product 5 Installing and connecting the KH 310 7 Preparing the loudspeakers 7 Preparing the 8 Positioning the lt 5 lt 8 Connecting audio 51 5 11 Connecting disconnecting the KH 310 to from the mains power supply 14 Configuring and using the KH 310 14 Switching the KH 310 14 Adjusting the frequency lt lt 14 Adjusting the acoustical 15 Compensating for video delay lip Sync 16 Compensating for listening distance differences time of flight 16 Activating ground lift eh hh 17 Adjusting the brightness of the Neumann 060 18 Cleani
4. 12 8 4 403 14 5 0 3 0 4 9 230 4 79 258 260 5 8 6 9 14 4 4 954 16 3 0 4 0 4 10 256 0 88 064 288 11 6 4 16 0 5 504 18 1 0 4 0 5 11 281 6 96 870 317 10 7 0 8 4 17 6 6 054 19 10 0 4 0 5 12 307 2 105 677 346 9 1 1 9 2 19 2 6 605 21 8 0 5 0 6 13 332 8 114 483 3 5 7 8 3 10 0 20 8 7 155 23 6 0 5 0 6 14 358 4 123 290 404 6 9 0 10 8 22 4 7 706 25 3 0 6 0 7 15 384 0 132 096 433 5 9 6 11 5 24 0 8 256 27 1 0 6 0 7 KH 310 IX NEUMANN Digital Delay Lookup Table Digital Delay Lookup Table Digital Delay Lookup Table Digital Delay Lookup Table Switch 3 0 1 ms Time ms Distance m Distance Imperial test 0 0 0 0 0 0 0 000 1 0 1 0 034 1 0 0 0 0 2 0 2 0 069 3 0 0 0 0 3 0 3 0 103 4 0 0 0 0 4 0 4 0 138 5 0 0 0 0 5 0 5 0 172 7 0 0 0 0 6 0 6 0 206 8 0 0 0 0 7 0 7 0 241 9 0 0 0 0 8 0 8 0 275 11 0 0 0 0 9 0 9 0 310 1 0 0 0 0 10 1 0 0 344 1 2 0 0 0 0 11 1 1 0 378 1 3 0 0 0 0 12 1 2 0 413 1 4 0 0 0 0 13 1 3 0 447 1 6 0 0 0 0 14 1 4 0 482 1 7 0 0 0 0 15 15 0 516 1 8 0 0 0 0 X KH 310 03 15 554654 A02
5. KH 310 NEUMANN KH 310 D Connecting multiple KH 310 D loudspeakers together gt Use the AES3 INPUT 8 and OUTPUT socket BNC 49 T pieces are not required see figure below gt Make an appropriate setting DIGITAL A or DIGITAL B on the SIGNAL SELECT rotary switch 17 End of the line external termination is not required as the AES3 INPUT socket BNC already has an internal 75 termination Set back panel switch to DIGITAL Set back panel switch to DIGITAL B TV Subframe A left signal Subframe B right signal RCA BNC or XLR Digital Source AES 3 or S P DIF Setting the SIGNAL SELECT rotary switch 7 gt Select one of the following settings depending on your needs ANALOG XLR input socket 5 DIGITAL A Digital subframe A AES3 INPUT socket BNC 19 or AES3 INPUT socket XLR DIGITAL Digital subframe B AES3 INPUT socket BNC 48 or AES3 INPUT socket XLR DIGITAL A B Digital subframe A summed with digital subframe B and a 6 dB attenuation AES3 INPUT socket BNC 48 or AES3 INPUT socket XLR Each of these can be selected with and without delay added so it is very quick to bypass the delay The digital output is a buffered copy of the digital input signal which can be used to feed the digital signal onto other loudspeaker or products There is no digital output from the AES3 OUTPUT socket BNC d9 when an analog signal is connected to the ANALOG INPUT
6. P n Midrange O XLR Analog Cross Signal Production Over SE Input p _ GND Lift I Bass Analog Fine Coarse 0 0 1 Digital A 1 5 0 Digital B Gain 50 P E Digital A B 75 45 2 Power all available Amplifiers wiih ana Bass Low Mid Treble without delay Acoustical Measurements Akustische Messungen Mesures acoustiques Mediciones Ac sticas Below are acoustical measurements conducted in anechoic conditions at 1 m Die folgenden akustischen Messungen wurden unter reflexionsarmen Bedingungen bei 1 m Abstand durchgef hrt Vous trouverez ci apr s les courbes correspondant aux mesures acoustiques effectu es en chambre sourde une distance de 1 m tre du moniteur Las siguientes mediciones ac sticas se han realizado bajo condiciones de baja reflexi n a una distancia de 1 m Pin assignment of the XLR socket Buchsenbelegung XLR Brochage de la prise XLR Asignaci n de la hembra XLR Audio ground Audio Erdung Masse audio Toma de tierra de audio Signal Signal Signal Se al Signal Signal Signal Se al NEUMANN Free Field Response Freifeld Frequenzgang R ponse en champ libre Respuesta en frecuencia en campo libre Sens 2 83V 1m KH310 dB 100 60 10 kHz Group Delay Gruppenlaufzeit Temps de propagation de groupe Retardo de grupo NEUMANN Harmonic Distortion at 90 dB SPL Klirrfaktor bei 90 dB SPL Distorsion harmonique a 90
7. at the same height and so that the bass drivers are on the inside If you are building a multichannel system gt Use either a left or right variant for the center loudspeaker Line up the acoustical axis along the center line of the loudspeaker array see below 8 KH 310 NEUMANN Front Left Front Center Front Right 30 30 Arranging the Copy the diagram Installation angles that can be found at the end of this operating manual loudspeakers gt Place the diagram at the listening position or center of the listening area gt Using a tape measure place the loudspeakers at the same distance from the center of the dia gram Installation angles To ensure good imaging do this at an accuracy of at least 1 cm Ch gt Make sure that the distances are equal Front Left Front Center Front Right Length M Length I Length I Listening position Length I Length I N 9urround Right 9urround Left KH310 9 NEUMANN If the loudspeakers cannot be placed at the same distance from the listening position gt Compensate for distance differences gt 1 cm 1 2 by delaying closer loudspeakers by 30 cm 76 us inch If you are using the KH 310 D KH 310 D gt Use the DELAY rotary switches 19 to compensate for distance differences see page 16 The DELAY rotary switches 6 allow for corrections with a resolution of 3 44 c
8. rain or moisture 17 Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids such as vases are placed on the equipment 18 The mains plug of the power supply cord shall remain readily accessible Installation Ensure that the room in which you use this product is wired in accordance with the local electrical code and checked by a qualified inspector Only use the product indoors Do not install the product in hot humid or excessively dusty locations in direct sunlight or in locations where it is exposed to externally generated vibrations e Do not place burning objects e g candles on top of or near the product e f condensation has formed on the product e g because it was moved from a cold environ ment to a warm one allow the product to acclimatize to room temperature before using it Do not overload wall outlets and extension cables as this may result in fire and electric shock 2 KH 310 NEUMANN Danger due to high sound pressure levels Magnetic fields Hazard warnings on the rear of the product Intended use Audio signals that are present at switch on of the product or that can be present during Operation can create sudden very high sound pressure levels which can damage your hea ring gt Always lower the output level of the audio source before connecting it to the loudspea ker starting it pressing play or switching to a different sou
9. subwoofer to the system Examples of sound pressure levels as a function of the input and output level of the KH 310 Input signal 4 20 dBu 0 775 V 0 775 V 1 23 V 77 5 mV INPUT GAIN control 15 4 15 OUTPUT LEVEL Switch 9 TP 100 100 94 114 Sound pressure level 100 85 94 79 dB SPL at 1 m Compensating for video delay lip sync KH 310 D Signal processing in LCD Plasma and LED screens digital projectors with LCD or DLP chips and video processors used in broadcast centers delays the video signal The delay is disturbing when audio leads video by more than 20 ms or lags by more than 40 ms To compensate for the video signal delay the audio signal can be delayed by up to 409 5 ms which is 10 2 frames at 40 ms frame or 12 3 frames at 33 ms frame The same value should be used for all loudspeakers in the system Please consider the information on latency on page 17 Compensating for listening distance differences time of flight Loudspeakers placed at different distances suffer from time of flight differences which affects imaging The delay resolution is small enough 0 1 ms that the delay can be used for time of flight adjustment 3 44 cm or 1 3 8 steps To compensate for the time of flight delay the audio signal of the KH 310 D can be delayed by up to 409 5 ms which is 140 87 m 462 2 Loudspeakers positioned closer to the listening position should be delayed to be the same as the furthe
10. the response changes 14 KH 310 NEUMANN The same loudspeaker installed in different positions in the same room may require different acoustical control settings In a symmetrical installation left right pairs front or back will probably have the same acoustical control settings gt Before using your loudspeaker system for the first time calibrate the frequency response of the loudspeakers in the room in order to obtain the desired response gt Repeat the above step if you change the physical conditions in your studio gt At your listening position determine the frequency response of each loudspeaker gt Use the ACOUSTICAL CONTROLS switches 0 to adjust the frequency response Recommended frequency responses measured at the listening position Studio applications flat e Film applications X curve shape see ANSI SMPTE 202M Home applications subjective evaluation Bass Compensates for acoustical 0522 5555 7 5 dB loading in the low frequency range due to nearby large solid boundaries e g walls Low Mid Compensates for acoustical Qux 45B loading in the low mid frequency range due to nearby large solid objects e g mixing consoles desks or flat screens Treble Compensates for insufficient or 1 O 1 2 dB excessive high frequency damping in the room The following settings can be used as a starting point for further adjustment In a corner 7 5 dB 1 5 dB Next to an acoustically s
11. to 40 C 50 F to 104 F max 90 non condensing 100 to 240 V 50 60 Hz 25 C to 70 C 13 F to 158 F max 90 EMC EN 55103 1 2 Electromagnetic Environment Class E3 Safety EN 60065 47 CFR 15 subpart B CAN ICES 3 B NMB 3 B Acoustical measurements block diagram and pin assignment Additional technical data such as acoustical measurements a block diagram and the pin assignment of the XLR socket can be found at the end of this operating manual Accessories BKH 310 Soft carry bag for one KH 310 FKH 310 Flight case for one KH 310 GKH 310 Metal grille LH 25 Mounting bracket LH 28 Tripod stand adapter LH 29 TV spigot lighting stand adapter LH 36 Tilting adapter LH 37 Subwoofer adapter LH 41 Base plate LH 43 Surface mounting plate LH 45 Wall bracket LH 46 Adjustable ceiling drop adapter LH 47 Mounting adapter plate LH 48 Tripod adapter plate NEUMANN Manufacturer Declarations Guarantee For the current terms and conditions of the product guarantee please visit www neumann com In compliance with the following requirements e WEEE 2012 19 EU Please dispose of the product at the end of its operational lifetime by taking it to your local collection point or recycling center for such equipment 54 Declaration of Conformity nous 2011 65 EU Low Voltage Directive 2006 95 EC e EMC Directive 2004 108 EC The declarations are available on the product page at www n
12. to the mains power earth pin Adjusting the brightness of the Neumann logo If the Neumann logo is switched off it is not obvious whether the product is switched on or off In this case unexpected high sound pressure levels can cause hearing damage gt Always set the audio sources connected to the loudspeaker to a low output level before they deliver an audio signal gt If you switch off or dim the Neumann logo mention this to everyone who works with this loudspeaker or the connected audio sources To dim or switch off the Neumann logo in low light level environments or when the loudspeaker is placed behind an acoustically transparent screen gt Set the DISPLAY BRIGHTNESS switch 7 to 30 96 60 96 or 100 to adjust the Neumann logo to different brightness levels OFF to switch off the Neumann logo When the loudspeaker s protection system is active or invalid digital signals are connected to the KH 310 D the color of the Neumann logo changes from white to red The brightness of this red limiter indication corres ponds to the setting of the DISPLAY BRIGHTNESS switch 7 30 60 or 100 However you cannot completely switch off the limiter indication as it appears with a brightness of 30 even if the DISPLAY BRIGHTNESS switch 7 is set to OFF Cleaning and maintaining the KH 310 Liquids entering the product can cause a short circuit in the electronics and da
13. AL CONTROLS switches Threaded inserts for Neumann mounting hard ware Handles with mounting holes Cooling fins On off switch I O IEC mains socket DELAY rotary switches SIGNAL SELECT rotary switch AES3 INPUT socket BNC AES3 OUTPUT socket BNC AES3 INPUT socket XLR NEUMANN Installing and connecting the KH 310 If improperly mounted the product and or the mounting hardware e g rack can tip over or drop down gt Always have the product mounted by a qualified specialist according to local national and international regulations and standards gt Use the mounting systems recommended by Neumann and always provide sufficient additional protection against tipping or dropping If air cannot circulate properly around the cooling fins on the rear of the product the amplifier s may overheat leading to premature activation of the thermal protection system which limits the maximum output level of the loudspeaker In rare cases damage to the product may also occur gt Never cover the cooling fins gt When installing the product into tight spaces such as wall recesses maintain an air gap of at least 5 cm 2 around the rear of the product and provide sufficient air circulation If necessary use forced air cooling e g in OB vans It is not possible to remove the electronics panel and locate it remotely For information on installation please refer to the supplied Getting Started Quickly supplement This
14. GB SPL Distorsi n arm nica total a 90 dB SPL KH310 2nd Harmonic 3rd Harmonic THD 90 dBSPL Harmonic Distortion at 95 dB SPL Klirrfaktor bei 95 dB SPL Distorsion harmonique a 95 dB SPL Distorsion armonica total a 95 dB SPL KH310 2nd Harmonic 3rd Harmonic THD 95 dBSPL EEL EET i o7 EE E LION Cl d 1 2 2 10 kHz NEUMANN Maximum SPL at 1 m 1 and 3 96 Maximaler SPL bei 1 Acoustical Controls Akustikregler Effet des correcteurs de 1 96 und 3 96 Niveau SPL maximal 1 m 1 96 et 3 96 SPL compensation acoustiques Regulador ac stico m ximo a 1 m 1 96 y 3 96 Max SPL KH310 1 3 Freefield KH310 Acoustical Controls Bass Mid Hi dB 120 cl Yi 110 Er fl il 10 kHz NEUMANN Cumulative Spectral Decay Zerfallsspektrum D croissance spectrale cumul e Caida espectral acumulada a an i ER D 3 4 O y d 5 15 222 Hun eg E 2018 25 B 304 Frequency Hz ms KH 310 V NEUMANN Horizontal Directivity Plot Horizontales Abstrahlverhalten Directivit horizontale Directividad horizontal E 24 0 21 0 I 21 0 18 0 E 18 0 15 0 EJ 15 0 12 0 4 12 0 9 0 _ 9 0 6 0 _ 6 0 3 0 3 0 0 0 _ 0 0 3 0 VV um 90 30 Angle 9 Frequency Hz VI KH 310 NEUMANN Vertical Directivity Plot Vertikales Abstrahlverhalten Directivit vert
15. THD and noise 0 196 with deactivated limiter analog active 650 Hz 2 0 kHz 24 dB oct 4 order Bass 0 2 5 5 7 5 dB Low mid 1 5 3 4 5 dB Treble 1 O 1 2 dB NEUMANN Protection circuitry Infrasonic filter frequency slope Input type Input impedance XLR balanced Input gain control sensitivity Output level control CMRR Maximum input level Signal format XLR BNC Impedance XLR balanced Impedance BNC unbalanced Input switching Digital converter resolution design Digital converter sampling rates kHz Digital sensitivity Dynamic range A D A D A THD N analog delayed digital Maximum delay time distance Maximum delay audio video synchronization lip sync Minimum delay resolution time distance Latency D A with delay ms Latency A D A with delay O ms DELAY setting acknowledgement Digital error Loudspeaker s protection system is active Power consumption idle Power consumption full output AC Dimensions H x W x D Internal net volume external volume Weight Excursion limiter Low Peak limiter Low Thermo limiter Low Mid High Overheat protection Amplifiers 15 Hz 6 dB oct XLR electronically balanced gt 13 O dBu to 15 dBu 94 100 108 114 dB SPL 56 dB 100 Hz to 15 kHz 24 dBu ANALOG 18 dBu ANALOG DELAYED AES3 S P DIF 110 0 input 75 Q input and output Analog Digital A Digital B Digital A B 16
16. and sample rate and then set the needed additional delay using the delay switches on the back panel Example Distance compensation for 1 m 1 344 m s 2 91 ms 2 91 ms Digital input signal sample rate 48 kHz latency 0 85 ms 2 06 ms Delay settings Ox 25 6 ms 1x 1 6 ms 5 x O 1 ms equals 2 1 ms which is the nearest value For video delay compensation converter latency can be ignored as it is insignifi cant compared to long video signal delays To help with choosing a delay setting there is a set of lookup tables at the end of this operating manual Also Neumann has made a delay calculator which is availa ble at www neumann com Activating ground lift If there is humming or buzzing noise coming from the loudspeaker first search for the cause of the noise gt Disconnect all input and output signal cables from the loudspeaker If the noise goes away it is probably coming from the audio source or source cabling KH 310 17 NEUMANN It might be possible to eliminate the noise by disconnecting the ground from the input signals activating ground lift To activate ground lift gt Reconnect the signal cables and set the GROUND switch to LIFT This internally disconnects pin 1 of the ANALOG INPUT socket XLR 5 from the loudspeaker s chassis ground see diagram Pin assignment of the XLR socket on page 11 For safety reasons the electronics chassis ground is always connected
17. eumann com Certified by Ge Audio Video and Similar Electronic Apparatus Safety Requirements CAN CSA C22 2 No c us 60065 03 and UL 60065 2007 Trademarks Neumann is a registered trademark of Georg Neumann GmbH The following are trademarks of Georg Neumann GmbH e Mathematically Modeled Dispersion and MMD Other company product or service names mentioned in this operating manual may be the trademarks service marks or registered trademarks of their respective owners FCC This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation This class B digital apparatus complies with the Canadian ICES 003 Changes or modifications made to this equipment not expressly approved by Neumann may void the FCC authorization to operate this equipment 22 KH 310 NEUMANN System Block Diagram System Blockdiagramm Synoptique Syst me Diagrama de Bloques del Sistema KH 310 D only E N N S P DIF can be received on the BNC connectors with a suitable adapter AI e o 7 Switched mode BNC AES3 Output 0 lt 999 BNC AES3 Input 24 bit 192 kHZ XLR AES3 Input e CA AAN Tra i Display Dimmer i 100 60 3096 o E gt Treble
18. he polarized or 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 are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs conveni ence receptacles and the point where it exits from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Useonly with the cart stand tripod bracket or table specified by the manufactu 5 NJ Au 5 rer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the appara tus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus when the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 To completely disconnect this apparatus from the AC mains disconnect the power supply cord plug from the AC receptacle 16 WARNING To reduce the risk of fire or electric shock do not expose this apparatus to
19. hed to the rear of the product CAUTION AVIS RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR The symbols on this label have the following meaning Presence of uninsulated dangerous voltage within the product s enclo sure that may be of sufficient magnitude to constitute a risk of fire or electric shock Never open the product or remove the grilles fitted to the product as CAUTION AVIS there is a risk of electric shock There no user serviceable parts FISK OF ELECTRIC SHOCK DO NOT FE e M E RISQUE DE CHOC ELECTRIQUE inside Refer servicing to your Neumann service partner NE PAS OUVRIR gt Read and follow the safety and operating instructions contained in the operating manual Intended use of the product includes having read this operating manual especially the chapter Important safety instructions e using the product within the operating conditions and limitations described in this opera ting manual Improper use means using the product other than as described in this operating manual or under operating conditions which differ from those described herein NEUMANN The KH 310 studio monitor Thank you for purchasing a Neumann studio monitor The KH 310 features a Mathematically Modeled Dispersion Waveguide MMD flexible acoustical controls various input options and an extensive range of mounting hardware This allows the loudspeaker to be used i
20. icale Directividad vertical 24 0 21 0 21 0 18 0 8 18 0 15 0 E 15 0 12 0 E 12 0 9 0 9 0 6 0 6 0 3 0 3 0 0 0 0 0 3 0 M 1 nn nii Lon A 90 PITT PEEP EL EE PPP ELLE ELLE LL EL B g e S S S S S Q S Q S S S S Q S Q S S S e N S S ES S S e S S S Q Q S S S S S S N vo CV D SO S XV KH S Q FS SS C S Frequency Hz KH 310 VII NEUMANN Installation angles Aufstellwinkel Angles d installation ngulos de colocaci n VIII KH 310 30 22 59 22 59 30 e 60 60 X S 2 S 2 X 2 2 A DA L Py ee 110 110 120 120 cmz 10 NEUMANN IN 2 Digital Delay Lookup Table Digital Delay Lookup Table Digital Delay Lookup Table Digital Delay Lookup Table Switch 1 25 6 ms Switch 2 1 6 ms Time ms Distance m Distance Imperial ON 0 0 0 0 Time ms Distance Imperial _ ces 0 0 0 0 0 0 0 000 0 0 0 000 1 25 0 8 806 28 11 0 6 0 8 1 6 0 550 1 10 0 0 0 0 2 51 2 17 613 5 9 1 3 1 5 3 2 1 101 3 T 0 1 0 1 3 76 8 26 419 86 8 1 9 2 3 4 8 1 651 5 5 0 1 0 1 4 102 4 35 226 115 7 2 6 3 1 6 4 2 202 7 3 0 2 0 2 5 128 0 44 032 144 6 3 2 3 8 8 0 2 752 9 0 2 0 2 6 153 6 52 838 173 4 3 8 4 6 9 6 3 302 10 10 0 2 0 3 7 179 2 61 645 202 3 4 5 5 4 11 2 3 853 12 8 0 3 0 3 8 204 8 0 451 231 2 5 1 6 1
21. lity cables with the correct impedance and appropriate termination to avoid signal drop outs and to achieve the maximum cable lengths shown below Analog RCA low up to 10 m via an adapter RCA XLR 30 to the ANALOG INPUT socket XLR see below Analog XLR low up to 100 m directly to the ANALOG INPUT 300 socket XLR 5 see below AES3 BNC 750 up to 100 m directly to the AES3 INPUT 300 socket BNC 18 see page 12 AES3 XLR 1100 up to 100 m directly to the AES3 INPUT 300 socket XLR see page 12 S P DIF RCA 750 up to 10 m viaan adapter RCA BNC to the 30 AES3 INPUT socket BNC 48 see page 12 or via an adapter RCA XLR to the AES3 INPUT socket XLR CO see page 12 Connecting analog signals to the KH 310 A and the KH 310 D gt Only connect analog signals to the KH 310 A Connecting gt Connect the left and right output of your analog audio source to the XLR input sockets of XLR cables the respective loudspeaker ke Y e 2 e Signal A Signal B Analog Source Connecting Use an RCA XLR adapter not supplied to connect unbalanced cables e g RCA cables unbalanced cables Use the following wiring if you want to make your own RCA XLR adapter st 1 Audio ground m 2 Signal Unbalanced RCA to balanced XLR connections 3 Signal If there is a humming sound from the loudspeaker activate ground lift to disconnect pin 1 of the ANALOG INPUT socket XLR 5 from the lo
22. m 1 3 8 any small remaining time of flight adjustment should be made by moving the loudspeaker cabinet gt Check the location of the loudspeaker cabinet This depends on the application 2 0 systems stereo 30 plus optional subwoofer s e 5 1 systems ITU R BS 775 1 0 30 110 10 plus optional subwoofer s center front left right surround left right ANSI SMPTE 202M 05 22 5 arrays to the surround left and to the surround right plus optional subwoofer s 7 1 systems 00 30 90 150 plus optional subwoofer s center front left right side left right back left right The acoustical axis of the KH 310 starts from the midpoint of the midrange and tweeter dri vers gt Always point the acoustical axis in the horizontal and vertical planes towards the listening position The acoustical axis is a line perpendicular to the loudspeaker s front panel along which the microphone was placed when tuning the loudspeaker s crossover during design Pointing the acoustical axis in the horizontal and vertical planes towards the listening position or center of the monitoring area will give the best measured and perceived sound quality Im gt Position the loudspeaker so that there is a direct line of sight from the listening position to BR the bass midrange and tweeter drivers 10 KH 310 NEUMANN Connecting audio signals gt Always use good qua
23. mage or even destroy the product gt Keep all liquids away from the product gt Before cleaning disconnect the product from the mains power supply gt Use a soft dry and lint free cloth to clean the product Do not use any solvents or cleaning agents gt Clean the cooling fins regularly They should always be kept free from dust gt Never touch the driver diaphrams 18 KH 310 NEUMANN Troubleshooting The Neumann logo is off no sound is heard from the KH 310 The Neumann logo is off or not clearly visible but sound is heard from the KH 310 The Neumann logo is flashing red but there is no sound The KH 310 s internal main fuse has blown The Neumann logo is switched off or dimmed A DIGITAL signal is selected on the SIGNAL SELECT rotary switch Have the product checked by an autho rized Neumann service partner Switch on the Neumann logo and switch off the dimming see page 18 Connect a valid signal to the digital input check the cabling or set the SIGNAL SELECT rotary switch 47 to ANALOG 47 but there is no valid audio signal connected to the digital input There is hum or buzz coming from the KH 310 when the audio cable is connected Bad cabling or ground loop in the installation Check all cabling to eliminate the cause of the problem change from unbalanced to balanced cabling or use the ground lift switch see page 16 For further information please refer to
24. n diverse acoustical conditions with any source equipment and in a wide variety of physical locations The KH 310 represents the latest in acoustic and electronic simulation and measure ment technologies to ensure the most accurate sound reproduction possible Depending on the size Neumann s three way loudspeaker systems are designed for use as near field monitors as front loudspeakers in mid sized multi channel systems or as rear loudspeakers in larger multi channel systems They can be used in project music broadcast centers OB vans and post production studios for tracking mixing and mastering Package contents 1 KH 310 A left or KH 310 A right or KH 310 D left or KH 310 D right Mains cables European UK and US versions Self adhesive feet Operating manual Getting Started Quickly supplement e e A U H Note that imperial dimensions are approximate The current operating manual as well as the supplement Getting Started Quickly can also be 4 m O downloaded from the Downloads area on the product page at www neumann com www neumann com Y 4 KH 310 NEUMANN Product overview The KH 310 comes in two variants named left and right see figure It is also possi ble to use a left in the right position and vice versa Both variants can also be used as a center loudspeaker Information about positioning your KH 310 can be found from page 8
25. ng and maintaining the KH 310 18 Troubleshooting 19 Specifications 19 ACCOSSOTIOS 21 Manufacturer lt 22 Appendix System Block Diagram I n I Pin assignment of the XLR 5 I Acoustical Measurements I Installation lt V Delay 1 VI KH 310 1 NEUMANN Important safety instructions 1 Read these instructions Keep these instructions Always include these instructions when passing the product on to third parties Heed all warnings Follow all instructions Do not use this apparatus near water Only clean the product when it is not connected to the mains power supply Clean only with a dry cloth T Always ensure a free air flow around the cooling fins on the rear of the product Do not block any ventilation openings Install in accordance with the manufacturer s instruc tions 8 Donotinstall near any heat sources such as radiators heat registers stoves or other ap paratus including amplifiers that produce heat 9 Donotdefeat the safety purpose of t
26. olid wall e g brick concrete 5 dB Next to an acoustically soft wall e g gypsum 2 5 dB Free standing in an untreated room 2 5 dB 1dB Free standing in a well treated room In a small room with strong side wall reflections 5 dB O dB Near a small desktop or small reflecting surface 1 5 dB Near a large desktop or large reflecting surface 3 dB Use these settings in addition to one of the top settings Adjusting the acoustical level gt On your KH 310 loudspeakers set the OUTPUT LEVEL switch 9 to 94 dB SPL and the INPUT GAIN control 8 to 15 dB gt Play a broadband pink noise test signal that is set to 18 dBFS Europe or 20 dBFS USA on the mixing console s output level meters gt Measure the sound pressure level at the listening position using a sound level meter with the following settings C weighted Slow integration time KH 310 15 NEUMANN 25 6 ms SIGNAL SELECT 16 KH 310 gt Set the OUTPUT LEVEL switch 9 and the INPUT GAIN control 8 of your loudspeakers so that the desired acoustic level is obtained Recommended sound pressure levels Application Sound pressure level Film 85 dB C Broadcast 79 to 83 dB C Music No defined reference levels If the Neumann logo flashes red the loudspeaker s protection system has been activated To avoid this and achieve the desired output level use larger loudspeakers or add a bass managed
27. rce analog digital via the SIGNAL SELECT rotary switch 7 This loudspeaker can be used for commercial purposes Commercial use is subject to the rules and regulations of the trade association responsible Neumann as the manufacturer is there fore obliged to expressly point out possible health risks arising from use This loudspeaker is capable of producing sound pressure levels exceeding 85 dB A SPL This is the sound pres sure corresponding to the maximum permissible level which is by law in some countries allowed to affect your hearing for the duration of a working day 8 hours It is used as a basis according to the specifications of industrial medicine Higher sound pressure levels and or longer durations can damage your hearing At higher sound pressure levels the duration must be shortened in order to prevent hearing damage The following are signs that you have been subjected to excessive sound pressure levels for too long a time You can hear ringing or whistling sounds in your ears You have the impression even for a short time only that you can no longer hear high fre quencies temporary threshold shift This product generates a permanent magnetic field 1 5 mT that can interfere with car diac pacemakers and implanted defibrillators ICDs gt Always maintain a distance of at least 10 cm 4 between the loudspeaker and the car diac pacemaker or implanted defibrillator The label shown on the right is attac
28. side of the listening axis of the room left right gt Minimize the sound that is reflected back to the listening position by using angled surfaces and or acoustical treatment This product has been optimized for use in recording studios In order not to affect the quality of reproduction make sure that the product is used in an EMC environment Positioning the loudspeakers gt Carry out the following steps very accurately since the more accurate the physical arrange ment of the loudspeakers in the room the more accurate the reproduction will be at the lis tening position Distances P Observe the recommended distances between the loudspeakers and your listening position imperial dimensions are approximate e Minimum 0 75 m 2 6 e Recommended 1 0 2 5 m 3 8 e Maximum 6 0 m 18 gt Avoid positioning the loudspeaker at a distance d behind the loudspeaker of 0 8 to 2 m 2 6 to 6 from the wall wall When positioning bass managed loudspeakers gt Avoid a distance d of 0 8 to 1 m 2 6 to 3 from a solid wall behind the loudspeaker Similarly avoid these distances from solid side walls or a solid ceiling Respecting these positioning limitations reduces the chances of dips and peaks in the low frequency response comb filtering caused by strong reflections Positioning the The KH 310 comes in two variants named left and right KH 310 position the two variants
29. socket 5 therefore the KH 310 D cannot be used as an analog to digital converter KH 310 13 NEUMANN Connecting disconnecting the KH 310 to from the mains power supply To connect the KH 310 to the mains power supply gt Make sure that the on off switch 8 is set to gt Connect the IEC connector of the supplied mains cable to the mains socket 5 Power Source gt Connect the mains plug of the mains cable to a suitable wall socket To disconnect the KH 310 from the mains power supply gt Set the on off switch 44 to gt Pull the mains plug out of the wall socket Configuring and using the KH 310 Switching the KH 310 on off WE wll gt Set the on off switch to to switch on the loudspeaker The Neumann logo lights up provided that it has not been switched off by means of the DISPLAY BRIGHTNESS switch 7 see page 18 e O to switch off the loudspeaker The Neumann logo goes off There is an approximate five second delay before sound can be heard from the loud speaker in order to avoid noises pops from preceding equipment switched on at the same time Conversely switching off the loudspeaker immediately mutes the audio Adjusting the frequency response When all its acoustical controls are set to O dB the KH 310 loudspeaker is designed to have a flat frequency response in anechoic conditions When the loudspeaker is installed in your monitoring environment
30. st loudspeaker from the listening distance NEUMANN KH 310 D Example Loudspeaker A listening distance 1 50m Loudspeaker B listening distance 1 65 m Time of flight difference 0 15 m So loudspeaker A should be delayed by the time equivalent of 0 15 m which is 0 436 ms 0 15 m 3 44 cm x O 1 ms The nearest setting of the DELAY rotary switches 6 is 0 4 ms so set the O 1 ms switch to position 4 Please consider the information on latency further down If a video delay compensation has already been made add the time of flight difference here O 4 ms to the setting already made Example Video delay compensation on loudspeaker A 2 x 40 ms frame Desired time of flight compensation for loudspeaker A 0 4 ms Time of flight compensation 80 4 ms This delay value can be made with these switch settings 3 x 25 6 ms 2x 1 6 ms 4 x O 1 ms The latency of the analog to digital and digital to analog converters should be taken into account when using the DELAY rotary switches 19 for time of flight com pensation For the digital to analog conversion input signal via digital connector the latency is dependent on the sample rate values can be seen in the Specifica tions table on page 20 The analog to digital to analog conversion input sig nal via analog connector is fixed at 0 54 ms For time of flight compensation delay calculate the desired delay value then sub tract the appropriate latency depending on the input signal
31. the Questions amp Answers section on the product page at www neumann com Specifications Free field frequency response Pass band free field frequency response Self generated noise INPUT GAIN set to O dB OUTPUT LEVEL set to 100 dB SPL Total harmonic distortion 0 5 96 at 95 dB SPLat 1m Max SPL in full space calc in half space at 3 96 THD at 1 m averaged between 100 Hz and 6 kHz Bass capability Max SPL in half space at 3 THD at 1 m averaged between 50 Hz and 100 Hz Max short term SPL with IEC weighted noise IEC 60268 5 at 1 m in typical listening conditions Max short term SPL with music material at 2 3 m in typical listening conditions pair Max long term SPL with pink noise at 2 3 m in typical listening conditions single pair Woofer Class AB amplifier continuous peak output power Midrange Class AB amplifier continuous peak output power Tweeter Class AB amplifier continuous peak output power Controller design Crossover frequencies crossover slope Acoustical controls 34 Hz to 21 kHz 3 dB 36 Hz to 20 kHz 2 dB 20 dB A SPL at 10 cm gt 85 Hz 110 3 dB SPL 116 3 dB SPL 104 5 dB SPL 113 dB C SPL 100 dB C SPL full range 107 dB C SPL with subwoofer 93 99 dB C SPL full range 94 100 dB C SPL with subwoofer 150 W 210 W THD and noise 0 196 with deactiva ted limiter 70 W 90 W THD and noise 0 196 with deactivated limiter 70 W 90 W
32. udspeaker s chassis ground KH 310 11 NEUMANN Connecting digital signals to the KH 310 D KH 310 D Connecting gt Connect the digital AES3 or S P DIF output signal of your audio source to the AES3 AES3 cables INPUT socket 48 or of the respective KH 310 D See figure below The KH 310 D loudspeaker only supports non encoded AES3 and S P DIF signals Encoded signals such as MP3 DTS or Dolby Digital are not supported gt Make an appropriate setting DIGITAL A or DIGITAL B on the SIGNAL SELECT rotary switch 47 The setting depends on the signal channel order and the loudspeaker position Only one cable is needed for uncompressed AES3 and S P DIF digital signals single wire mode They contain two audio channels subframe A and sub frame B Usually the audio channels are Left Right Center LFE Surround left Surround right Back left Back right A clock input is not required because loudspeakers are not audio sources and the converters are clocked to a very stable internally generated clock source To connect an additional loudspeaker gt Use the AES3 OUTPUT socket 19 See figure below gt Make an appropriate setting DIGITAL A or DIGITAL B on the SIGNAL SELECT rotary switch 47 Set back panel switch to DIGITAL A Set back panel switch to DIGITAL B Subframe A left signal Subframe B right signal RCA BNC or XLR Digital Source AES 3 or S P DIF 12
33. will help you set up the loudspeakers in a way that will give you the best acoustic performance from the system For further information on setting up loudspeakers please refer to the Questions amp Answers section on the product page at www neumann com For more information on building systems using Neumann loudspeaker products please refer to the Product Selection Guide at www neumann com Preparing the loudspeakers Some surfaces treated with varnish polish or synthetics may suffer from stains when they come into contact with other synthetics Despite a thorough testing of the synthetics used by us we cannot rule out the possibility of staining gt Do not place the KH 310 on delicate surfaces If the KH 310 is placed face down on a soft surface or if the front panel of the KH 310 is pressed against your body when you carry it the drivers can be damaged gt Never place the KH 310 on a soft surface with the front panel facing downwards gt Always carry the KH 310 so that the front panel is facing upwards You can use the handles 2 on the rear panel to lift the loudspeaker NEUMANN To place the loudspeaker on a flat surface gt Attach the supplied self adhesive feet to the bottom of the cabinet This reduces the risk of scratching the surface and acoustically isolates the loudspeaker from the surface Preparing the room gt Arrange all acoustically relevant surfaces and objects symmetrically on either
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