6.3.4Channel Output
Use each output to adjust each channel to give the same output level using an SPL meter.
6.3.5Level Matching Multiple Surround and Subwoofer Channels
The
1.Using the internal noise test of the SDP test each output individually. It will be necessary to mute the output you are not testing. Make sure the Trim Link is off (not RED).
2.Once you have set each to the reference level (75dB) enable the Trim Link feature so that the led turns RED.
3.With all the multiple channels
Figure 14.
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SDEC