What is going on here

Video Asylum

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I have an NAD pre/pro and an NAD seven channel power amp, both their current models and each less than six months old. Recently the system developed a hum in the left front speaker. After checking all connections and swapping out the pre/pro to amp cable, I fixed the hum by using a cheater plug on the power amp at the surge protector.
But then I noticed that the front presentation, whether in stereo or multi-channel, was shifted to the right. I again checked all connections and also checked for proper phase. Everyhting checked. Using the circulating test tone I made all channels the same level using a sound level meter. But whn i swirched back to cintinuous music or movies, the sound was still shifted to the right of cewnter. I switched the center channel speker in and out of the system and there was still the right shift in either mode.
The only way I can center things is to add 4 db to the left front channel and subtract 4 db from the right front channel. 8 db is a lot of difference and I am mystified since test tones now are clearly louder in the left front channel.
Does anyone have any idea what is going on?

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Topic - What is going on here - rico 12:16:34 10/06/04 (8)

Re: What is going on here - Lowrider 04:02:14 10/11/04 (0)

Re: What is going on here - Estes 13:03:38 10/07/04 (2)

Re: What is going on here? - rico 07:31:46 10/08/04 (1)

Re: What is going on here? - Estes 10:32:20 10/08/04 (0)

Re: What is going on here - johnvb 14:39:57 10/06/04 (1)

Re: What is going on here - rico 07:55:19 10/07/04 (0)

Re: What is going on here - Kal Rubinson 13:03:05 10/06/04 (1)

Re: What is going on here - rico 07:54:37 10/07/04 (0)

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