Is it humming or not?

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Hi, there. Last week I posted a message about humming problem
with my passive biamp with Arcam Alpha AV50 and Delta 290.
The people in Audiophile System, Ltd. suggested to float the
ground on the Delta 290. I did and it got rid of the low frequency
hum from the mid woofer.
However, I notice a high frequency noise from the tweeters, in pro-logic mode both front and surround speakers, in stereo mode only front speakers.
When connected only to the AV50, disconnecting the TV cable company
coaxial did not make any difference.
When passively biamp using AV50 and Delta 290, disconnecting the TV
cable company coaxial reduces the high frequency noise.
Thank you in advance for your suggestions.

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Topic - Is it humming or not? - CL 14:09:10 02/13/00 (0)

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