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  1. Home Theater Receivers | Processors | Amps
    I have an Adcom GFA-7500 power amp, and noticed yesterday there is a mild, buzzing sound coming from the unit (not through the speakers). Any thoughts on what it could be?? I unplugged the power cord from power strip, and plugged directly into the wall. There was no buzz at first, but then...
  2. Electronic Processing/Equalization Devices
    My Rane PE-17 has a buzz that I can't get rid of. I'm using 1/4" to RCA. I've got two subs so each 1/4" has two RCA females on the end. They are mono, not stereo. I've tried grounding via the ground screw on the back of the Rane and the other end connected to a wall plug screw. No luck. I...
  3. System Setup and Connection
    I noticed my subwoofer was humming today... I seldom turn it on as I live in an apartment building and don't want to annoy the neighbors too much. I unplugged everything except the subwoofer and proceeded to plug in one component at a time. As soon as I plugged in my Pioneer 5010FD plasma tv...
  4. General Service and Technical Information
    HI all, Many sub forums here, I hope I've chosen the correct one. I've got a mildly annoying and (probably) common issue, where I run two amps in my setup and get what I assume is ground loop hum. I have a stereo amp running my main L/R speakers for listening to music - and love it. I also...
  5. DIY Repair and Maintenance
    Hello, I have a Samsung HLT6156WX/XAA 61" HD TV. About a month ago I was watching TV and it powered off, powered back on, while powering on I heard an electrical buzzing noise 2 times in a row which lasted about 2 seconds each buzz. The TV showed picture and sound for about 20-30 seconds and...
  6. REW Forum
    Wondering if anyone has encountered this before. With Bruceks help i have my tascam 144vcalibrated, and got through my first measurement. I was running my laptop on battery, and it finally croaked so I plugged it in. I immediately got a bad humm and slight crackle from my sub. any thoughts...
  7. Electronic Processing/Equalization Devices
    I received a new 1124 feedback destroyer today. Got it all hooked up and found speakers to be buzzing. Not a hum, a pretty good buzz, out of every speaker. But only the sub was hooked into feedback destroyer. Any ideas?> Thanks JR
  8. System Setup and Connection
    Hi, I was wondering if you could give me some input to a slight problem I have been having? The other day I still noticed the very slightest kinda hum buzz going on in both of my channels. It can only be heard at all if the amp gains are past half way up. If you were not listening for it most...
  9. AV Home Theater
    Hi, I was wondering if you could give me some input to a slight problem I have been having? The other day I still noticed the very slightest kinda hum buzz going on in both of my channels. It can only be heard at all if the amp gains are past half way up. If you were not listening for it most...
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