Isolated Cause of what? - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
Thread Tools
post #1 of 2 Old 05-19-2001, 09:05 PM - Thread Starter
hep8's Avatar
Join Date: Jan 2000
Location: Denville, NJ USA
Posts: 143
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
This evening I finally got around to troubleshooting a very annoying hum emanating from my speakers.

I have Snell K.5's for my L/R mains and the CR.5 as my center channel speaker. I recently added a Tice Power Block IIIC and Parasound HCA1000A (For Bi-amping).

At first I thought my problem was being caused by either the cable, sat or uhf feeds coming into my DTC-100. Each was properly grounded and, once removed from my system, the hum was still there!!!!

I then conducted a thorough, component by component, process of elimination and found that the culprit was ........the Parasound amp!

Currenly, I'm running the Pre-outs on my Yamaha DSP A1 into the inputs of the Parasound and the output back into the Main In of the Yamaha. I have the Parasound handling bass chores, while the Yamaha takes care of the mid and tweeter. I have MIT Terminator 5's running in between both the Yamaha/Parasound and the Snell's.

I've read in other threads that Parasound amps have a habit of introducing hum in other systems (Steve Bruzonsky mentioned having a similar problem).

I'm now in a quandry as to how to remove the hum from my system. Should I have the Parasound modified (repaired?) or is there some other hardware solution available? Thanks in advance for any feedback.

Darren -
hep8 is offline  
Sponsored Links
post #2 of 2 Old 05-19-2001, 11:22 PM
Advanced Member
lolittle's Avatar
Join Date: Jul 2000
Location: Fort Worth, Texas
Posts: 733
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I had Parasound amps introduce hum into my system also. After trying all the usual fixes (cheater plugs, making sure interconnects weren't too close to power cords, etc), I returned them. I'm now using a Bryston 4B ST (without a cheater plug) in their place, with no hum. I don't even have to use the ground lift switch.


Lynn Olan Little
lolittle is offline  
Sponsored Links
Closed Thread Speakers

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off