It's not a bad ground. I've had several other amps hooked up to this same ground without any problems.

I found another person who had the exact same problem. Check out Bob J's post.

http://forums.nasioc.com/forums/arch...p/t-62163.html


The problem is that when I turn up the gain more than halfway, the sub vibrates like crazy but it makes very little sound because the frequency is extremely low (5-10 hertz). It even happens with no input signal or when I press pause.

[ October 15, 2005, 04:02 PM: Message edited by: Luckyman ]

 

[img]graemlins/banghead.gif[/img]

I said GROUND LOOP....

you have noise in your interconnects... [img]graemlins/wavey.gif[/img]

 

Yes I understand what your saying, but all of my other amps have been connected using the exact same interconnects.

Nothing has changed in my system except for the amp. Either this amp is much more susceptible to ground loop problems, or my amp has problems.

Even MTX thinks that my amp might have a problem.

 

ya I would say your amp is prone to picking up the noise... its not the amp itself man, there are no components inside that could fail and cause an amp to act like that.... if you are still unconvinced HOOK THE THING UP WITH MUTING PLUGS !!!!

After you realize that you have a ground loop problem you need to either fix the problem or just keep your gains low like you are already doing.... (which sucks for output unless you can feed the amp a high voltage signal)

 

When I have some time I'll try the muting plugs.

 

When in doubt read the manual.
I agree Kyle.
The most common reason for an amplifier to fail within it's warranty period is because of mis-use, abuse, or poor installation.
And many good amplifiers failed in this industry because of the "my buddy told me" syndrom. and whenever I inquired more often than not, I always found a case of mis-use by inexperienced know-it-alls. and BTW it was always a problem with mis-adjusted gains (thinking they'll get more power).