Polycom EF2241 Mixer User Manual


 
INTEGRATING THE EF2241 INTO YOUR SYSTEM
VORTEX EF2241 Reference Manual 16 Technical Support: 800.932.2774
you should increase your input gain by 15 dB. If the meter shows an average gain of
+10 dB, you should decrease your input gain by 10 dB.
Set Levels on Line
Input Channels
Set the line input channel gains (Channels A-D) to match the nominal level of the
incoming equipment. The line inputs have a maximum nominal level of 0 dBu. If
your incoming line level inputs have a higher nominal level than 0 dBu you will want
to use a pad to remove the level.
If you are connecting from equipment that has RCA plugs, you will most likely need
8 dB of gain on the Input and -8 dB of gain on the Output.
Figure 9. AGC Meter on the Diagnostics page of the Conference Composer soft-
ware. The gain adjustment is the same gain control on the Mic/Line Inputs page in
Conference Composer.
I
F THE AGC METER SHOWS... ADJUST THE INPUT GAIN IN THIS WAY.
positive gain Increase gain by the level
shown in the box.
negative gain Decrease gain by the level
shown in the box.
an average level of 0 dB You’ve set the Input Gain
to a good level!
Table 1: How to set the Input Gain using the AGC meter on the Conference
Composer Diagnostics page.
AGC Level Meter
Read AGC level
Adjust Input Gain here