2. amps-preamps
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Buzzing in my speakers w/ new amp

I've just introduced a new Odyssey Stratos Amp with a cap upgrade to my system, and I'm getting a nasty buzzing sound in my speakers. It sounds like its definitely an electrical issue. I contacted Klaus at Odyssey (great guy!) and he had me disconnect the interconnects and the buzzing went away. This tells me that the amp is picking up some interference and its not within the amp itself (unless its the interconnect connections, which I doubt). I think I'm dealing with some serious dirty power. I did not have this problem with my previous amp (Marantz MM9000), but that amp did not have the same quality (sensitive) power supply.

I'm hoping that you people have some solutions for me to try, so that I can stop focusing on the buzz, and concentrate on the beautiful music this amp is delivering.

I've already tried isolating the cables, different (dedicated) outlets,different interconnects, a PS Audio UO (did quiet it down a bit), a "cheater plug" (dangerous?), a Monster Cable HTS5000(the high-end one with the "glowing meter") and a PS Audio P300 power re-generator (made it worse!!!). The Stratos Amp has two little blue LED's inside to illuminate the Odyssey logo. I'm wondering if these could possibly be introducing some interference? In the past I've had some experience with this type of wiring introducing problems.

My system consists of the following:

Sunfire TheaterGrand 2 Pre-Pro
Odyssey Stratos 2ch amp
Marantz MM9000 Amp (center, surrounds for theater)
Alisis MasterLink HardDisk Recorder/CD transport
MSB Link DAC3
Sony DVD (high end, forgot model)
PS Audio P300
PS Audio 20 Amp UO
Monster HTS5000
TaraLabs interconnects (high end, forgot model)
TaraLabs speaker cables


Im sure this is a common problem out there, so HELP ME PLEASE!!!!
mhubbard

Showing 2 responses by s23chang

s23chang
617 posts
 
Mhubbard, what interconnect are you using? Does it have shielding? I have the same issue with my amp that it only works with certain interconnects and not all the interconnects. The one that works are NBS and Audio Note.
Many manufacture don't shield their cable or don't shield properly.
s23chang
617 posts
 
Mhubbard, the ground design in each amp is different. Some is more sensitive than the other.
The same cable will not make hum noise in my second system.

Not sure if you have any radio shack grade of cheap interconnects but you can try that and see if they make hum.
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