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Section 3: Setting Up Your System

Unpacking

When removing the systems from their packaging, it is important not to grasp the units from the front. Because the 
high frequency device is located near the top of the cabinet on the front baffle, a stray hand or finger can cause 
damage. The best way to safely unpack your monitors is to open the top of the box, keep the foam end-cap piece on, 
and roll the box upside down. The box can then be slipped off. This also works in reverse for repacking the units.

Placement

IThe LSR2328P and LSR2325P models are designed to be positioned vertically to allow the woofer and the tweeter to 
be in vertical alignment. This orientation eliminates phase shift that occurs when the distance of the woofer to the ear 
is a different from the distance of the tweeter to the ear. Also, the tweeter waveguide is designed to provide optimum 
dispersion when the system is vertically oriented. Placing the system horizontally will defeat the LSR Linear Spatial 
Reference principles and cause destructive reflection off the work surface. The loudspeakers should be angled so the 
center of the high-frequency transducer in each speaker is aimed directly towards the ear of the listener. Ideally, the 
LSR2328P and LSR2325P speakers should be placed on suitable speaker stands, rather than on the work surface, and 
positioned away from walls and boundaries. The distance and position of the subwoofer can be adjusted to produce 
best bass response in the room. Low frequency performance in the room can benefit by placing the subwoofer close to 
a wall or in a corner that may be further away from the mix position than the other speakers. When properly placed, you 
should not be able to localize the bass produced by the subwoofer. That is, your ear should believe the bass is coming 
from the Left and Right speakers.

    In two channel production applications, the common listening distance is generally 1 to 1.5 meters (3 to 5 feet) from 
the left and right speakers. The speakers should be placed so the position of the listener and the two speakers form 
an equilateral triangle. In 5.1 Surround Sound production, the listening distance for all speakers from any speaker is 
typically 5' to 8'. The placement of the Left and Right speakers should form an equilateral triangle with the mix position. 
The Center speaker should be placed half way between the left and right speakers at exactly the same distance from 
the mix position. The Left Surround and Right Surround speakers should be placed the same distance as the Left, 
Center and Right speakers, and positioned 110 degrees to 150 degrees relative to the center speaker. The distance 
and position of the subwoofer can be adjusted to produce best bass response in the room.

30º

30º

30º

30º

11

150º

110º

150º

Mix Position

2 Channel System with 

Subwoofer

5.1 Surround Sound 

System

Summary of Contents for LSR2310SP

Page 1: ...LSR2300 Series Studio Monitors Owners Manual LSR2325P 5 Two Way Bi Amplified Studio Monitor LSR23258P 8 Two Way Bi Amplified Studio Monitor LSR2310SP 10 Studio Subwoofer ...

Page 2: ...2 ...

Page 3: ...s or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus 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 the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 The appliance coupler of...

Page 4: ...nections 9 LSR2310SP Powered Studio Subwoofer Front and Rear View 10 Input Panel 11 Audio Connections 11 Setting Subwoofer Level 12 Placement and Polarity 12 Crossover Settings and Bass Management 12 Surround Sound and 1 LFE Channel 12 Systems Connections Stereo and Surround Sound Systems 13 Appendix A Mounting of LSR2328P and LSR2325P 16 Appendix B Trouble Shooting 17 Specifications 18 JBL Servic...

Page 5: ...ays and equipment All models are internally amplified with high output Class A B monolithic power amplifiers to provide high SPL Sound Pressure Level for demanding production applications The soft dome magnetically shielded High Frequency Transducer in the LSR2325P and LSR2328P incorporates optimally damped materials to improve transient response and minimize distortion By reducing distortion in t...

Page 6: ...face and positioned away from walls and boundaries The distance and position of the subwoofer can be adjusted to produce best bass response in the room Low frequency performance in the room can benefit by placing the subwoofer close to a wall or in a corner that may be further away from the mix position than the other speakers When properly placed you should not be able to localize the bass produc...

Page 7: ...e a rear panel voltage selector switch that is set at the factory for the appropriate voltage Before connecting the power cable it is a good idea to check the position of this switch to confirm the voltage switch is correctly set for the country of use The power connector on the speaker includes a user replicable protective fuse The ground terminal of the IEC plug is required by wiring codes and r...

Page 8: ...ve 10 kHz 3 Low Frequency Transducer Woofer Reproduces low frequency content of the input signal 4 Power Indicator Illuminates when power is connected and the Power Switch is set to ON 5 Low Frequency Port Works in conjunction with the low frequency transducer to provide accurate low frequency performance and air flow to cool the internal electronics 6 Input Panel Includes input connectors power c...

Page 9: ...ector 15 Fuse Holder Includes a user replaceable fuse and a spare fuse 16 Voltage Selector sets the operating voltage for compatibility with the voltage supply in the country of use 17 Power Switch Activates power for the system Audio Connections Connect Professional 4dBu and 10 dBV signal sources to either the XLR or input connectors Connect consumer 10dBV level equipment to the RCA input connect...

Page 10: ...cts 3 Power Indicator Illuminates when power is connected and the Power Switch is set to ON 4 Feet Elevates the Subwoofer to prevent acoustic coupling with the floor and prevent scratching of the enclosure 5 Low Frequency Port Low Frequency Port Works in conjunction with the low frequency transducer to provide accurate low frequency performance and air flow to cool the internal electronics 6 Input...

Page 11: ...o Channel Stereo Systems Connect the Left and Right outputs of the signal sources directly to the Left and Right Inputs of the LSR2310SP Subwoofer Then connect the Left and Right Outputs of the Subwoofer to the Left and Right main speakers Using the LSR2310SP in a Surround Sound System If theLSR2310SP Subwoofer is being used to reproduce the 1 LFE channel in a surround sound system connect the 1 L...

Page 12: ...her 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 from 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 LSR2310SP subwoofer to reproduce all the bass frequencies in your system If you are u...

Page 13: ...13 Section 6 System Connections Two Channel Systems left channel speaker right channel speaker Subwoofer Mixer Left out Right out ...

Page 14: ...14 Section 6 System Connections Two Channel Systems with MSC Monitor System Controller left channel speaker right channel speaker Subwoofer Computer audio system Mixer MP3 Player Headphones MSC1 ...

Page 15: ...n 6 System Connections Surround Sound Systems Subwoofer Computer audio work station left channel speaker right channel speaker left surround speaker right surround speaker Center speaker Computer Audio interface ...

Page 16: ...e thickness of the mounting plate Hole Pattern 1 4 Inch 107 9 mm 4 25 in 50 8 mm 2 in Caution Unsafe mounting or overhead suspension of any heavy load can result in serious injury and equipment damage Mounting of speakers should be done by qualified persons in accordance with all applicable local safety and construction standards Be certain to follow the instructions provided by the manufacturer o...

Page 17: ...n the Power Switch to the OFF position Remove the power cord and remove the fuse holder as illustrated Examine the fuse If the fuse has a discontinuity in the internal wire or the fuse glass has dark spots as evidence the fuse has failed install a new using the spare included in the fuse holder Replace the fuse holder and try to re power the system If the system does not re power please contact JB...

Page 18: ...20 Volt 240 Volt 4 amp Time Lag 250V 2 amp Time Lag 250V 4 amp Time Lag 250V 2 amp Time Lag 250V 5 amp Time Lag 250V 2 5 amp Time Lag 250V Long Term Maximum System Power 100 watts IEC265 5 22 watts IEC265 5 150 watts IEC265 5 Controls Volume Range infinity dB 0 dB infinity dB 0 dB infinity dB 0 dB High Frequency Control 7 kHz Shelving 2 5 dB 0 dB 2 5 dB 2 5 dB 0 dB 2 5 dB Low Frequency Control 120...

Page 19: ...m 15 6 x 10 x 13 19 in 303 x 187 x 258 mm 11 9 x 7 4 x 10 in 414 x 381 x 460 mm 16 3 x 15 x 18 1 in Topology Class A B monolithic Class A B monolithic Sine Wave Power Rating 70 watts 0 1 THD into rated impedance 35 watts 0 1 THD into rated impedance THD N H Power 0 07 0 05 Physical Finish Baffle Metallic Anthracite Paint Baffle Metallic Anthracite Paint Baffle Metallic Anthracite Paint Enclosure M...

Page 20: ...cts 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 complète de nos distributeurs internationaux est disponible sur le site web www jblpro com International Wenden Sie sich an Ihre örtli...

Page 21: ...l 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 ever 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 Agen...

Page 22: ...Part Number UMLSR2300 0109 ...

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