background image

4

Selectable Inputs

The LSR4312SP subwoofer provides six discrete balanced analog XLR inputs (Left, Right, Center, Left 
Surround, Right Surround, and LFE) with sele4dBU / -10dBv sensitivity, as well as balanced ¼-
inch inputs for the Left and Right channels. In addition, dual high-resolution 96 kHz stereo AES/EBU and 
S/PDIF digital inputs are provided. This variety of inputs allows the LSR4312SP to be connected to a wide 
range of devices, including digital workstations, CD players, DVD players, and multichannel processors. 
What’s more, you can determine which input is to be monitored with the push of a button on either the 
front panel or wireless remote or click of a mouse (via an attached computer and LSR4300 Control Center 
software*).  

Other Features

•  12-inch self-shielded transducer with neodymium motor structure, self-powered with 450 watts 
of 
internal    amplifi cation, eliminating the need for external amplifi ers or speaker cabling. 

• Ultra-low frequency response to 20Hz, measured in-room.

• Advanced front-panel user interface allows control of system functions such as volume, solo, 
input selection, RMC initiation and bypass, bass management on/off, bass management crossover 
and LFE lowpass fi lter selection, and brightness level of the meter and buttons.

• Front panel meters show continuous output levels in dBFS.

• Built-in side handles aid in the positioning of the LSR4312SP subwoofer.

Note:

* Use of the wireless remote control and LSR4300 Control Center Software requires that the LSR4312SP 
subwoofer be used in a system with one or more LSR4328P or LSR4326P studio monitors. 

Introduction - Features

Содержание LSR4312SP

Страница 1: ...LSR4312SP Linear Spatial Reference Powered Subwoofer Owner s Manual...

Страница 2: ...ii...

Страница 3: ...age the grounding prong If the provided plug does not t into your outlet consult an electrician for replacement of the obsolete outlet All powered products are tted with a detachable power cord suppli...

Страница 4: ...ithin the products enclosure that may be of suf cient 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...

Страница 5: ...2 Restoring Factory Settings 33 LSR4300 Control Center Software 33 Appendix A About Surround Sound 34 The LFE Channel 34 10 dB Gain 34 Bass Management 34 Appendix B Using Two LSR4312SP Subwoofers 36 A...

Страница 6: ...vi v...

Страница 7: ...and delivering sound you should turn to the Reference section which describes every feature and function of the LSR4312SP in detail Finally we ve included a number of technical appendices and speci ca...

Страница 8: ...eating a mix that sounds great on all playback systems If you think of a monitoring system as a kind of lens through which you hear sound the object is to have the lens be crystal clear and transparen...

Страница 9: ...woofer is ideal for surround sound production Up to eight main speakers any combination of LSR4326 and LSR4328 models and up to two LSR4312SP subwoofers can be easily con gured for LCRS 5 1 6 1 theatr...

Страница 10: ...ter and LSR4300 Control Center software Other Features 12 inch self shielded transducer with neodymium motor structure self powered with 450 watts of internal ampli cation eliminating the need for ext...

Страница 11: ...ote control o LSR4300 Control Center Software o 16 foot USB cable o Two network terminators o Two AAA batteries Here are simple step by step instructions to get you up and running quickly 1 Unpack the...

Страница 12: ...switch Analog audio Bass Management input output connectors Active Input display AC connector DIP switches USB connector CAT5 connectors 10dB LFE Gain switch Analog audio LFE channel input output conn...

Страница 13: ...and then use its analog and or digital outputs to distribute the signal to the main speakers The LSR4312SP subwoofer is able to accommodate up to six channels of analog signal and it also includes one...

Страница 14: ...gned to receive an LFE Low Frequency Effects signal Bass management of multiple digital signals requires an external bass management processor that provides a monaural or stereo bass managed signal to...

Страница 15: ...ed by that speaker See 10 on page 16 in this manual for more information about input selection 8 Set the bass management crossover and or LFE lter frequency as desired a If you are using bass manageme...

Страница 16: ...r so up to the 20 mark are lit 11 Play the signal source and adjust the overall volume to a comfortable listening level by pressing the controls on any speaker 12 If your LSR4300 system is brand new t...

Страница 17: ...system volume see 11 below Meter and button brightness see 11 below Error conditions The meter has 31 segments that can illuminate in green amber or red plus a 32nd clip indicator segment on the far r...

Страница 18: ...ss this button to turn the LSR4312SP on If networked together with other LSR4300 speakers all speakers will turn on simultaneously Press the button again to return the subwoofer and all other networke...

Страница 19: ...sing a digital signal source the rear panel DIP switch 5 must be set to the Bass Management right position see page 21 in this manual for more information in that case the LSR4312SP will reproduce sig...

Страница 20: ...quencies reproduced when monitoring an LFE signal Options are 50Hz 80Hz 120Hz or NONE no ltering To select one press the FILTER button It will ash and the meter display will con rm the currently selec...

Страница 21: ...seconds you can use the buttons to change the level setting The new selection will then be displayed on the meter display as shown in the following illustrations and will be stored in the LSR4312SP af...

Страница 22: ...ly selected input source In addition incoming signal will temporarily be muted While the INPUT button is ashing for approximately 3 seconds you can use the buttons to change the input source The newly...

Страница 23: ...17 Analog input S PDIF input CH A S PDIF input CH B S PDIF input CH A B AES EBU input CH A AES EBU input CH B Reference Front Panel...

Страница 24: ...link indicating an error condition If both switches are placed in the ON right position the LSR4312SP will reproduce signal coming from both channels For more information see page 21 in this manual 11...

Страница 25: ...19 Rear Panel 1 2 4 8 7 9 10 11 12 13 14 15 3 3 3 3 3 5 3 3 5 5 5 5 6 16 LSR4312SP Rear Panel Reference Rear Panel...

Страница 26: ...at 8 S PDIF output connector RCA type Output connector used to route incoming S PDIF signal to another speaker 9 AES EBU input connector XLR Input connector for incoming digital signal in two channel...

Страница 27: ...for LFE is applied the front panel Bass Management ON function is disabled and bass management cross over lters are not used High Pass lters in LSR4328P and LSR4326P are not enabled When the Subwoofe...

Страница 28: ...tereo signal For more information see 10 on page 16 in this manual 15 POWER connector Accepts the supplied IEC power cable 16 FUSE HOLDER Holds the power fuse and one replacement power fuse Remote Con...

Страница 29: ...ocess To turn Bass Management on or off press the Bass Mgmt ON button in the sub section of the remote To adjust the Bass Management X OVER or LFE FILTER settings with the remote control press the cor...

Страница 30: ...nually place this switch in whichever setting yields a stronger perceived bass response at the mix position See Appendix C on page 41 in this manual for more information about using the LSR4312SP with...

Страница 31: ...ws RMC calibration to be carried out for the entire system at once and it enables bass management to be instantly switched in or out for all speakers with the push of a single button What s more HiQne...

Страница 32: ...stereo use with LSR4328P and LSR4326P studio monitors SUBWOOFER LEFT SPEAKER CENTER SPEAKER RIGHT SPEAKER LEFT SURROUND SPEAKER RIGHT SURROUND SPEAKER Network Terminator Network Terminator Networking...

Страница 33: ...00 Control Center Software will cause the JBL logo in networked speakers to blink for approximately 3 seconds Turning Bass Management on or off Changing the Bass Management Crossover frequency Changin...

Страница 34: ...g AD converters Full range XLR analog outputs are provided for each of the six analog audio inputs use these to distribute analog signal to the main speakers in your system and or a second subwoofer C...

Страница 35: ...ypical Audio Connections The illustrations on the following pages show audio interconnections for integrating an LSR4312SP subwoofer into stereo and surround LSR4300 systems For information on integra...

Страница 36: ...ce Digital Audio Workstation with digital outputs AES EBU audio connection Legend S PDIF audio connection Analog audio connection LEFT SPEAKER SUBWOOFER RIGHT SPEAKER Additional analog audio source L...

Страница 37: ...S PDIF audio connection Analog audio connection LEFT SPEAKER SUBWOOFER CENTER SPEAKER RIGHT SPEAKER RIGHT SURROUND LEFT SURROUND Left Surround Right Surround Additional analog audio source Center LFE...

Страница 38: ...takes only a few seconds per speaker During the RMC calibration process the computer trims all speaker and subwoofer levels in ne incre ments so that all monitors in the system produce equal SPL soun...

Страница 39: ...trol Center Software supplied with the LSR4300 Accessory Kit allows you to control all front panel LSR4312SP functions using a connected Windows or Macintosh computer In addition the onscreen display...

Страница 40: ...ystems employ a scheme in which the LFE channel is recorded 10 dB below reference level with the signal then boosted by the same 10 dB upon playback Although this practice has largely been abandoned w...

Страница 41: ...cision as to whether to use bass management is dependent largely upon the application There are times when you may need to use the LSR4312SP to monitor the LFE channel only and other times when the LS...

Страница 42: ...g the low frequencies of the left channel and the other is dedicated to reproducing the low frequencies of the right channel There are also advantages to adding a second LSR4312SP to a surround setup...

Страница 43: ...audio connection Legend Interconnections for adding a second LSR4312SP to a non bass managed 5 1 setup Appendix B Using Two LSR4312SP Subwoofers X Note To use digital inputs in a 5 1 multichannel syst...

Страница 44: ...SUB 2 Digital audio source Stereo Digital audio source Stereo Analog audio source Right channel Left channel AES EBU audio connection S PDIF audio connection Analog audio connection Legend Appendix B...

Страница 45: ...nt crossover lter will still operate as normal however because the signal sent via all LSR4312SP outputs both analog and digital is always full range you will have to use external processing to set hi...

Страница 46: ...40 Appendix D System Block Diagram...

Страница 47: ...41 Appendix D System Block Diagram...

Страница 48: ...nal pin but left to perform a cable shielding function only X Under no circumstances should the safety ground wire be removed from the AC power connector When using balanced sources with the LSR4312SP...

Страница 49: ...an LSR4312SP we recommend using 1 4 Tip Ring Sleeve connections As shown in Diagram C when using the 1 4 Tip Ring Sleeve or XLR connection the GROUND should be tied to the source not the sleeve of the...

Страница 50: ...e high quality cable designed for use with digital equipment We recommend the use of 110 ohm balanced cabling for AES EBU connections with a maximum cable length of 100 meters approximately 330 feet 7...

Страница 51: ...m mute exit SOLO on other speakers Reset Digital A B Channel Selection Error Brown Out Condition 2 networked subwoofers w mismatched settings RMC Timeout RMC State Non standard DIP switch con guration...

Страница 52: ...ections are OK source may be unstable I am having trouble daisy chaining my digital audio through multiple speakers Cable may not be suitable for digital application Make sure you are using cables per...

Страница 53: ...1 will be displayed as follows o Firmware v2 0 will be displayed as follows If your Studio Monitors have rmware version 1 1 installed use the enclosed CD ROM to update each Studio Monitor to version...

Страница 54: ...noise oor using analog input 1 8th Power Rating 25 watts Full Power Rating 100 hrs IEC pink noise 6dB crest Factor 200 watts Wattage Rating AC at 1 8th power IEC Pink Noise 140 watts Maximum Current...

Страница 55: ...180 degrees Additional Controls accessible via LSR4300 Control Center Software DIM 12 dB at full volume System MUTE SAVE LOAD Con guration RMC Trim Display Front Panel Display 31 LED Segments for dBFS...

Страница 56: ...age 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 modi e...

Страница 57: ...ED 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...

Страница 58: ...ributor 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 Profession...

Страница 59: ...53 Notes...

Страница 60: ...54 Notes...

Страница 61: ...55 Part Number 363032 002 09 06...

Отзывы: