JBL rmc User Manual

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RMC™ Room Mode Correction
User Guide

Summary of Contents of user manual for JBL rmc

  • Page 1RMC™ Room Mode Correction User Guide
  • Page 2 Table Of Contents RMC™ Room Mode Correction System 3-5 What Is RMC 3 What is Included in the RMC...
  • Page 3 The Room Mode Correction™ System What Is RMC? Developed by JBL Professional, RMC™ is a system designed to calibrate...
  • Page 4 What Is Included In The RMC Calibration Kit • Specialized Sound Level Meter • Calibration CD • User Guide...
  • Page 5Chart Paper: As you play test tones on the CD through the system, you will plot the read- ings on...
  • Page 6 Speaker Placement Where To Place The Loudspeakers A basic question is “where should I place my loudspeakers in the...
  • Page 7Generally, the best place to locate a subwoofer is on the floor against a wall, or within a few inches...
  • Page 8 Calibrating Your System I. LSR6328P System If your CD player has an output volume control, we strongly recommend that...
  • Page 93. Now advance to Track 3. This track contains a set of warble tones beginning at 126 Hz, moving downward...
  • Page 10 Analyze Your Measurements Most of your measurements for LSR6328P systems will fall within one of the six examples which follow....
  • Page 11Example D: This is a near-ideal case, and the recommendation is to do nothing. Your system will be fine as...
  • Page 12 Adjusting The RMC System When you have identified the peak you wish to equalize, 1.) enter its center frequency...
  • Page 134.) Enter your tabulated values into the LSR6328P RMC equalizer using the table below: Data Entry in RMC Equalizer Table:...
  • Page 14 II. LSR6328P Systems With LSR6312SP Subwoofer First, make sure that you have completed steps for a stereo LSR6328P system....
  • Page 15Feed one channel from the CD player into the left or right channel input on the rear of the LSR6312SP...
  • Page 16 Analyze Your Measurements Because of the extended LF response of the LSR6312SP system and its normal location at the intersection...
  • Page 17A very sharp dip adjacent to a peak: Figure 16 shows a peak at 41 Hz with an adjacent sharp...
  • Page 18 III. LSR6332 Or Other Passive Systems With LSR6312SP Subwoofer Many engineers will want to use the LSR6312SP subwoofer in...
  • Page 19Method Two Many engineers are quite happy with the response of their existing stereo or surround loudspeakers. They may only...
  • Page 20 V. Surround Systems Figure 20 shows a setup in which 3 LSR6328P units and one LSR6312SP unit comprise the...
  • Page 21IV. Multi-Channel Systems With Externally Provided Bass Management If you are using your LSR6300 system to monitor discrete multi-channel audio,...
  • Page 22 3. Turn all speakers on and perform level calibration of all channels. • To conform to cinema standard used to...
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  • Page 24 JBL Professional Contact Information Mailing Address: Outside the USA: JBL Professional Contact the JBL Professional 8500 Balboa Blvd. Distributor...
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