Reducing Gain
See Fig. 41 to locate the appropriate DIP switch.
1. If all OUTPUT GAIN sliders are in the OFF position: Reduce gain by attenuating the input
stage. Locate the appropriate INPUT ATTENUATION DIP switch.
a. If all sliders are in the OFF position: Locate the slider corresponding to the desired
gain reduction and switch it ON. Fig. 42
b. If one of the sliders is already ON: Add that slider's setting to the desired gain
reduction. Turn all sliders OFF, then switch ON only the slider corresponding to the
desired gain reduction. Fig. 42
EXAMPLE: You want to reduce the gain 6dB. You find the #1 (-3dB) slider is already
ON. ((-3dB)+(-6dB)=-9dB) Turn slider #1 OFF and turn slider #3 ON.
2. If one of the OUTPUT GAIN sliders is ON: Add that slider's gain setting to the desired
reduction. Turn all sliders OFF, then switch ON only the slider corresponding to the desired
gain setting. Fig. 42
EXAMPLE a: You want to reduce the gain 6dB. You find the OUTPUT GAIN slider #2 (+6dB)
is already ON. ((+6dB)+(-6dB)=0dB) Turn all sliders OFF (0dB).
EXAMPLE b: You want to reduce the gain 6dB. You find the OUTPUT GAIN slider #1 (+3dB)
is already ON. ((+3dB)+(-6dB)=-3dB) Turn all OUTPUT GAIN sliders OFF (0dB). Turn slider
#1 of the corresponding INPUT ATTENUATOR DIP SW ITCH ON.
Reducing Sensitivity
In nearly all systems requiring sensitivity changes, only the MAIN L-C-R channels require
adjustment. Unless you have specific test results indicating otherwise, sensitivity changes
should be limited to the MAIN L-C-R channels.
See Fig. 41 to locate the appropriate DIP switches.
Reduce sensitivity by attenuating the input and increasing the output gain by the same
amount.
If one of the INPUT ATTENUATION sliders are already ON: You must add the current INPUT
ATTENUATION setting to the desired sensitivity change. If one of the OUTPUT GAIN sliders is
ON, subtract the current OUTPUT GAIN setting from the desired sensitivity change. Switch
OFF all current settings and switch ON the new settings. Fig. 42
EXAMPLE: You want to decrease the sensitivity by 3dB. The INPUT ATTENUATION is already
set to -3dB and the OUTPUT GAIN is already set to +6dB. Set the INPUT ATTENUATION to
-6dB ((-3dB)+(-3dB)=-6dB) and the OUTPUT GAIN to +3dB ((-3dB)+(+6dB)=+3dB).
Factory DIP Switch Settings
CHANNEL INPUT OUTPUT
L-C-R -3dB +3dB
Subwoofers 0dB 0dB
Surrounds 0dB 0dB
3 |
ACEC
JBL
