Thanks Gbart. I'm using Classe Omega amplifiers. I just measured my outlet for DC, and am seeing about 200 mv. I had an air compressor plugged in that night, and maybe it went on and the motor increased my outlet DC?
How Much DC is OK on a Power Line?
The other night my Classe amplifiers started producing a substantial mechanical hum. Classe told me that it was likely from DC on the power line. The hum was there even when the preamp was switched to standby, and even when I plugged the amps into different sockets.
My questions:
1) how much DC on the powerline does it take to cause problems with audio equipment?
2) How does DC get into the AC signal on the power line?
3) Do the power companies have any spec they need to acheive for maximum DC?
4) Or is it more likely appliances within my house causing the DC.
Thanks, Peter
My questions:
1) how much DC on the powerline does it take to cause problems with audio equipment?
2) How does DC get into the AC signal on the power line?
3) Do the power companies have any spec they need to acheive for maximum DC?
4) Or is it more likely appliances within my house causing the DC.
Thanks, Peter
Showing 3 responses by peter_s
By the way, I'm using an Environmental Potentials home surge protector / conditioner as discussed inthis thread. As it is on a breaker, I can take it out of the system. |