PS Audio GCC-250 - Manual (Page 15)

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Troubleshooting 11
®
Troubleshooting
©2004 PS Audio International Inc. All rights reserved.
Owner’s Reference GCC Power Amplifi er Series
If you have a problem connecting a subwoofer, please refer to the quick start guide in the front of this
manual. We do not recommend connecting the high level inputs of a self power subwoofer to the
outputs of the GCC Series Power Amplifi er for some subwoofers. For many subwoofers it will be fi ne.
Some, like the REL subwoofers, and the Carver, Sunfi re type of subwoofers may not work properly
when connected to the GCC Series Power Amplifi er’s outputs. This is because the GCC Series Power
Amplifi er is a balanced type of output with a DC voltage as referenced to ground.
If the GCC Power Amplifi er shuts off when playing music, there are several possibilities. If the music
plays quite loudly but shuts off on the most explosive parts of the music or video soundtrack, then the
GCC Power Amplifi er is probably underrated for the type of speaker you are using. See your dealer or
call PS Audio for advice on going to the next size GCC Series Power Amplifi er in the series.
If the amplifi er shuts down with very little volume, then check the speaker cable connections. The
GCC Power Amplifi er is so powerful that it can actually play music at low levels even into a near short
on its outputs. Chances are good that you have a shorted connector (plus touching the minus) and
you should simply check carefully on the back of the speaker and the back of the amplifi er.
If you can’t dim the front panel display, it’s probably because you are not using the remote control.
The only way to dim the front panel display is to press the Dim button on the remote. As soon as you
change volume or inputs, the display will automatically brighten and then dim back to its preset level.
If you need to dim the blue light on the front panel below the display, there is a switch located on the
rear of the GCC that has three brightness settings.
If the amp shuts
down while
playing music
Problems with
subwoofers
If you cannot dim
the display