On Thu, 19 Jan 2006 22:04:09 GMT, "Dave"
wrote:
PS turn on thump is almost always a sign of a DC offset in the
output. It may suggest a DC offset in the input to the amp and
carrying that logic further - the built in protection is saving the
speakers from frying.

Some amps do thump when nothing is wrong - the design just comes up in
an unbalance condition and straightens out after a millisecond or two
as caps charge in the input stages.

Check the voltages . . .
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