YOu only need to float the ground on one of the components to break this hum problem Just try the 3/2 plug addaptor on 1 different component at a time until the hum goes away...no need to "unground" all the plugs with 3/2 addaptors. The fact that all the components are connected, and at least one is grounded, this will keep your system safe and grounded throughout. No problem...
How to eliminate system hum?
I have the following
Rotel 1090 amp
Hovland Pre-amp
Sony 777 CD player
Shahinian Speakers
I have this irritating hum/hiss when I turn on the pre-amp. The sound comes from the speakers when the pre-amp is turned on. If the pre-amp is off and the amp is on, the system is totally silent. It seems as if the amplifier is ok. It seems to be doing its job and is amplifying the crappy signal it is receiving.
Thinking my home electric was poorly configured, I had my electrician install a panel and dedicated lines for my system. The problem is now worse!
I don't think the pre-amp is to blame as I had the same problem with my previous pre-amp. I also have a new cd player.
I have read about "floating" the system ground by using 3 to 2 prong adapters on all system power cords. Is that what I should try?
If anyone has any ideas, I'd be very appreciative. Having $20k worth of stuff that sounds bad is no fun!
Rotel 1090 amp
Hovland Pre-amp
Sony 777 CD player
Shahinian Speakers
I have this irritating hum/hiss when I turn on the pre-amp. The sound comes from the speakers when the pre-amp is turned on. If the pre-amp is off and the amp is on, the system is totally silent. It seems as if the amplifier is ok. It seems to be doing its job and is amplifying the crappy signal it is receiving.
Thinking my home electric was poorly configured, I had my electrician install a panel and dedicated lines for my system. The problem is now worse!
I don't think the pre-amp is to blame as I had the same problem with my previous pre-amp. I also have a new cd player.
I have read about "floating" the system ground by using 3 to 2 prong adapters on all system power cords. Is that what I should try?
If anyone has any ideas, I'd be very appreciative. Having $20k worth of stuff that sounds bad is no fun!