PS Audio PerfectWave PowerBase Owner Reference Manual page 8

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can cause a loud buzz and should always be suspect. If, by the process of elimination described
above, you determine it is a component like a VCR that is causing the hum/buzz to occur, and using
Ground loops
a cheater plug or removing the ground pin on a PS xStream Power Cable doesn't help matters, it may
be necessary to isolate the cable connection (CATV) with an isolation transformer. This inexpensive
device is available at most Wal Mart, Radio Shack or department store type outlets and is sometimes
called a 'matching transformer'. If you have problems finding one, call your local cable TV company
for advice. The matching transformer will be placed between the cable TV cord and the VCR, TV or
processor.
Just remember, take the system down to its simplest level of connection. Find a way to hook the
system up with as many pieces of the system missing or not connected. Keep it simple and get it
to the point where the hum's gone. Then start adding back components one at a time until the hum
returns.
Finding the problem is 9/10th of the work in finding a solution.
4826 Sterling Drive, Boulder, CO 80301
PH: 720.406.8946 service@psaudio.com www.psaudio.com
Troubleshooting
©2012 PS Audio International Inc. All rights reserved.
Owner's Reference PerfectWave PowerBase
Troubleshooting 5