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Rotel 5 channel amp causes hum through speakers

I have a recently purchased Rotel 200 wpc home theater amp which is plugged into a dedicated circuit through a monster- power line conditioner. There is a low hum through all speakers, which are Thiel 2.2 mains & thiel scs center & rears. The center is mounted right above my samsung dlp tv. All plugs are grounded, and have line conditioners. Help?
michaeljbrown
kr4's avatar
kr4
3,680 posts
 
Bypass the PLC and see what happens.
darrylhifi
498 posts
 
I had a Rotel. I used a cheater plug. Thats a plug that turns a 3 prong plug into two. Available at Radio Shack and most hardware stores. Also experiment if you have Cable TV hooked up within your system. If so disconnect it to see if it goes away. If so thier are alternate remedies.
electric_monk
38 posts
 
Make sure it isn't happening with you TV on only. I find the same thing with my Parasound amp. TV on, hum, TV off, no hum. Some after market PC's such as PS Audio's nicer ones have a removable ground pin. Also, Ernie M (Subaruguru) sells a PC that has a disconnect on the ground. You can then use a good quality PC rather than put a cheater in the mix. I suggest the cheater as a cheap way to check if this is a potential fix however.
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