JBL Professional LSR4328P инструкция обслуживания

LSR4328P , LSR4326P Studio Monitor s Owner’ s Manual[...]

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iii Impor tant Saf ety Instr uctions 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water . 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accor- dance with manufacturer ’s instructions. 8. Do not install near any heat [...]

iv T a ble Of Contents Safety Instructions ....................................................................... iii Introduction .................................................................................... 1 Quick Start ..................................................................................... 5 Reference .....................[...]

1 Intr oduction Congratulations on your purchase of JBL LSR4300 Series Studio Monitors, the most advanced loudspeaker system ever developed for critical listening. W e know that very few people read owner ’ s manuals from cover to cover , so we’ve organized this one to make it easy to fi nd the information you need. The Features section on the[...]

2 Indicates that an LED is lit green. Indicates that an LED is lit red. Features The LSR4300 Series combines stunning sound and legendary JBL design with innovative new technologies. The end result is a product that is nothing short of revolutionary – a monitoring system suitable for use in the most demanding music, broadcast, and postproduction [...]

3 HiQnet™ Networking The LSR4300 Series also incorporates the new Harman HiQnet™ protocol that networks all the speakers in a system together and allows full control from the provided wireless remote control or from any computer via a standard USB connection and LSR4300 Control Center Software. W ith the push of a button or the click of a mouse[...]

4 Onboard Bi-amplifi cation LSR4300 Series monitors are self-powered, eliminating the need for external amplifi ers. Perfectly matched bi-amplifi cation is provided onboard, with 150 watts of power for the woofer and 70 watts for the high frequency transducer . Other Features • Custom designed transducers specially engineered to deliver clean,[...]

5 Quic k Star t Each LSR4300 speaker includes: • One speaker • CA T5 networking cable • AC power cord • This owner ’ s manual The LSR4326/P AK and the LSR4328P/P AK include: • T wo speakers, each with the above items • LSR4300 Accessory Kit containing: o Calibration microphone and mic clip o Infrared wireless remote control o LSR4300 [...]

6 LSR4300 Rear Panel 3. Connect each speaker to a suitable power source using the supplied AC power cable. (See page 23 in this manual for more information.) 4. Connect the speakers together in any order using the supplied CA T5 cable. Plug one end of the cable into either of the two HiQnet ports on one speaker and the other end into a HiQnet port [...]

7 tivity switch to +4dBV (switch IN) or -10dBu (switch OUT) to match the nominal level of the signal source. If you don’t know how to set the switch, consult the documentation for the signal source. Most professional devices operate at +4dBV while most consumer devices operate at -10dBu. (See page 24 in this manual for a wiring diagram.)  Do N[...]

8 8. Power up your signal source, then press the front panel POWER button on any speaker . All speakers in the system will power on (the JBL Logo will go from dimly to brightly lit.)  T o avoid “thumps” which can damage your speakers, always power up the signal source FIRST and your LSR4300 monitors LAST . 9. Set the initial speaker volume b[...]

9 R eference Overview LSR4328P/4326P Front LSR4328P/4326P Rear Front Panel LSR4328P/4326P Front Panel The controls and displays on the front panel of the LSR4300 allow you to adjust and view various speaker settings. Below is a listing and description of each. 1. Power Indicator – The JBL logo lights at two dif ferent levels. It is illuminated di[...]

10 2. Power – After connection to an AC power source, press this button to turn the speaker on. If networked together with other speakers, all speakers will turn on simultaneously . Press the button again to return the speaker to a low-power stand-by mode, where the internal amplifi ers are turned off and all user functions are deactivated. As s[...]

1 1  Y ou can calibrate your LSR4300 system so that the meter display will show how much SPL the speaker is contributing at the listening position. For more information, see Appendix E on page 38 in this manual. 4. SOLO – Press this button to mute the signal on all other speakers. As shown below , when this function is active, the SOLO button [...]

12  When a brand new LSR4300 speaker is fi rst powered on or if its factory settings have been recalled (see page 30 in this manual), the RMC button lights steadily to indicate that an RMC calibration needs to be performed. For more information, see page 25 in this manual. 6. EQ – Pressing this button allows you to enable or bypass the LSR430[...]

13 9. PRESET – Allows you to select and activate one of six factory EQ presets, or a seventh “current setting” preset. T o recall a preset, press the PRESET button. It will fl ash. While fl ashing, use the + or – buttons to select the desired preset. R eference - F ront Panel[...]

14 When a preset is selected, the LF and HF buttons will illuminate to indicate whether the currently selected preset has LF and/or HF boost or cut. The preset becomes active when the PRESET button stops fl ashing (after approximately 3 seconds). If no preset is selected during that time (that is, the +/- buttons have not been pressed), or if you [...]

15 S/PDIF input selected (channel A) S/PDIF input selected (channel B) AES/EBU input selected (channel A) AES/EBU input selected (channel B) After changing the input source, the Active Input display on the rear panel will indicate the current selection.  When monitoring digital (S/PDIF or AES/EBU) signal, the rear panel DIP switches must be set [...]

16 1 1. +/ - – These increment/decrement buttons have dif ferent functions, depending upon whether a front panel button is fl ashing or not. If a front panel button is fl ashing, they are used to increment or decrement the value of the selected parameter . (For example, if the PRESET button is fl ashing, the +/- buttons step through the variou[...]

17 4. RMC Microphone Input – 1/8 ″ connector for the supplied RMC calibration microphone. CAUTION: This input connector pr ovides +15 volts of phantom power , so be sure to not connect any device other than the supplied RMC calibration microphone to this connector . 5. S/PDIF input connector (phono) – Input connector for incoming digital sign[...]

18 Remote Control The provided infrared wireless remote control allows you to make adjustments to your LSR4300 system without leaving the mix position. The remote control duplicates all the controls found on the speaker front panel (such as power on, volume adjust, soloing, input select, EQ adjustment and preset selection) and adds the following ex[...]

19  When using the remote control with a networked system, always aim it at the LEFT speaker . 1. ON – Duplicates the function of the front panel POWER control. 2. RMC – Press to bypass RMC settings. (The front panel RMC buttons will light.) Press again to reactivate RMC settings.  The remote control cannot be used to initiate the RMC cal[...]

20 Speaker Placement The design of the LSR4300 system lends itself to a wide variety of placement options. Covered here is a typical stereo setup for near- to mid-fi eld monitoring, where the mix position is generally 1 to 1.5 meters (3 to 5 feet) away from the speakers. While the exact stereo listening angle is largely a matter of personal prefer[...]

21 AC Power Connections The LSR4300 voltage is set at the factory for use with either 100V -125V (U.S.) or 200V -250V . The ground terminal of the IEC plug is required by wiring codes and regulations. It must always be connected to the electrical installation safety ground. CAUTION: Do not use three-pin-to-two-pin AC adapters to defeat the ground. [...]

22 The illustrations below show typical network interconnections for both stereo and surround sound use. Networking interconnections and DIP switch settings for stereo use Networking interconnections and DIP switch settings for surround use  At least one LSR4300 monitor in a networked system must have its LEFT DIP switch set to ON.  When usin[...]

23 Audio Connections The LSR4328P and LSR4326P speakers are equipped to accommodate a range of analog and digital signal input sources. Y ou can connect two digital sources and one analog source to each speaker and switch between them using front panel controls, or the wireless remote control and/or LSR4300 Control Center software. Analog Connectio[...]

24 T o route an incoming AES/EBU two-channel signal to another speaker , use an cable with XLR plugs on both ends to connect the AES/EBU OUT of the fi rst speaker to the AES/EBU IN of the second speaker . T o route an incoming S/PDIF two-channel signal to another speaker , use a cable with phono plugs on both ends to connect the S/PDIF OUT of the [...]

25 the speakers at the mix position and automatically applies corrective fi lters to dramatically minimize low frequency resonances. Because room modes create resonance at specifi c frequencies with very narrow bandwidths (sometimes called “Q”), the on-board analyzer has the intelligence to identify the specifi c frequency and Q and apply a [...]

26 Following are step-by-step instructions for performing an RMC calibration: 1. Make sure all LSR4300 monitors are positioned as intended. 2. Using the mic clip, attach the provided calibration microphone to a mic stand and place the mic at the mix position, oriented vertically , at ear level. Be sure that it is no closer than 1.5 feet (.46 meters[...]

27 Do not block the signal coming from any speaker while performing RMC calibration. 5. Each speaker in the system will sequentially emit a reference tone and its meter will show a left-to-right “chase” pattern that indicates the system is calibrating.  The RMC procedure produces a fairly loud swept sine wave calibration tone that can surpri[...]

28  The supplied calibration microphone must be connected to perform RMC. If the RMC button is pressed and held for 3 seconds or longer and no mic is connected, the meter display will fl ash to indicate an error condition, and all RMC settings currently in memory will be erased. RMC error condition T o bypass the calibrated settings and compare[...]

29 The LSR4328P and LSR4326P provide six factory EQ presets. (A complete listing of all parameters for the factory presets is presented in Appendix A). T o recall a preset, press the front panel PRESET button on any networked speaker (it will begin blinking), then use the + or – buttons to select the desired preset. Preset 1 is indicated by the l[...]

30 Restoring Factory Settings Setting all DIP Switches to the ON position and re-powering a speaker clears all user settings (such as RMC calibration and EQ settings) stored in the speaker ’ s memory . T o clear the memory of a speaker and recall the factory EQ presets: 1. T urn the speaker off and disconnect its power cable. 2. Set all eight DIP[...]

31 A ppendix A: EQ Pr esets  All factory EQ presets use an LF corner frequency of 500 Hz and a HF corner frequency of 2.0 kHz. • Preset 1: LF 0 dB, HF = +2.0 dB • Preset 2: LF +1.5 dB, HF = 0 dB • Preset 3: LF +2.0 dB, HF = +2.0 dB Appendix A: EQ Pr esets[...]

32 • Preset 4: LF 0 dB, HF = -1 dB • Preset 5: LF 0 dB, HF = -2 dB • Preset 6: LF -1.5 dB, HF = 0 dB Appendix A: EQ Pr esets[...]

33 A ppendix B: System Bloc k Dia g r am Appendix B: System Block Diag ram[...]

34 A ppendix C: W iring Requirements Analog Connections For optimum performance, some attention to wiring details now can reduce system degradation later . The cabling recommendations given below follow standard wiring practice for differential inputs. Balanced Sources The best way to run your system is balanced, where both “HOT” (+) and “COL[...]

35 Unbalanced Sources When using unbalanced sources, there are more possibilities to introduce ground loops into a system. The LSR4328P and LSR4326P offer several ways to help alleviate potential problems with unbalanced equipment. While there are only HOT and GROUND/SHIELD connections from unbalanced sources, it is recommended that high quality tw[...]

36 Diagram D details the connections using single conductor shielded cable with a T ip/Ring/ Sleeve or XLR plug for the LSR4328P / LSR4326P input. Single conductor cable should be used as a last resort as it provides the greatest likelihood of problems. The “HOT” (+) signal should be connected to the tip of the T ip/Ring/Sleeve plug. The GROUND[...]

37 A ppendix D: Mounting Specifi ca tions Mounting points are provided for use with readily available industry standard mounting brackets. Mounting points are located on the bottom of the LSR4328P and LSR4326P models. Fastener specifi cations T ype: M6 metric thread Length: 1 inch (25.4 mm) plus the thickness of the mounting plate. Hole Pattern: [...]

38 A ppendix E: SPL Calibr a tion The chart below shows the SPL (Sound Pressure Level) delivered by the speaker when the listening position is 1 meter (3.3 feet), 2 meters (6.6 feet) and 3 meters (roughly 10 feet). Y ou can create a visual reference for any listening distance using a readily-available Sound Pressure Level (SPL) meter and a pink-noi[...]

39 A ppendix F: Er r or Messa ges and T r oubleshooting Under certain circumstances, the meter display on the speaker will indicate an “error message.” Following is a list of conditions that cause an error message to be displayed, and the corrective action required to cancel the error message. LIST OF ERROR MESSAGES: Error Cause Display Looks L[...]

40 Following is a list of common easily remedied issues. Consult this list if you are having any diffi culties operating your speakers. TROUBLESHOOTING LIST Condition Cause Remedy Lack of network terminators Install terminators in fi rst and last speaker . V olume setting seems low DIM button on Remote Control is activated Press DIM button on rem[...]

41 Specifi ca tions (Unless otherwise noted, all specifi cations are for both LSR4328P and LSR4326P models) System Frequency Response (+/- 1.5 dB): 50 Hz – 20 kHz (LSR4328P) 55 Hz – 20 kHz (LSR4326P) Enclosure Resonance Frequency: 41 Hz (LSR4328P) 52 Hz (LSR4326P) Low Frequency Extension: User controls set to default -3 dB: 43 Hz – 22 kHz ([...]

42 Specifi cations 1/8 TH Power Rating: 13 watts LSR4326P , 18 watts LSR4328P Full Power Rating (100 hrs. IEC pink noise, 6dB crest Factor): 58 watts IEC Pink Noise LF Channel Only W attage Rating: AC at 1/8 th power IEC Pink Noise 60 watts Maximum Current: AC at maximum power output (audio) 120V AC line 2.2A (LSR4328P , LSR4326P) 230V AC line 1.1[...]

43 Specifi cations Additional Controls via LSR4300 Control Center Software: DIM (-12 dB at full volume), System MUTE, Preset STORE; LOAD Confi guration, SA VE Confi guration; Level TRIM +3 dB to – 10 db in ¼ dB increments Display/ Front Panel Display: 31 LED Segments for dBFS and indication of settings Front Panel Meter: -70 dBFS to 0 dBFS pl[...]

44 War ranty Statement W ar r anty Sta tement Who Is Protected by This W arranty? Y our JBL W arranty protects the original owner and all subsequent owners so long as: A.) Y our JBL product has been purchased in the Continental United States, Hawaii or Alaska. (This W arranty does not apply to JBL products purchased elsewhere except for purchases t[...]

45 Warr anty Statement Limitation of Implied W arranties ALL IMPLIED W ARRANTIES, INCLUDING W ARRANTIES OF MERCHANT ABILITY AND FITNESS FOR P AR TICULAR PURPOSE, ARE LIMITED IN DURA TION T O THE LENGTH OF THIS W ARRANTY . EXCLUSION OF CER T AIN DAMAGES JBL ’S LIABILITY IS LIMITED T O THE REP AIR OR REPLACEMENT , A T OUR OPTION, OF ANY DEFECTIVE P[...]

46 JBL Pr of essional Contact Infor mation Mailing Address: JBL Professional 8500 Balboa Blvd. Northridge, CA 91329 Shipping Address: JBL Professional 8370 Balboa Blvd., Dock D Northridge, CA 91329 Customer Service: Monday through Friday 8:00am - 5:00pm Pacifi c Coast T ime In the U.S.A. (800) 8JBLPRO (800.852.5776) www .jblproservice.com On the W[...]

47 Part Number: Rev . 101305, 352712-002[...]