"Binba" wrote in news:1157473246.298395.192480
@d34g2000cwd.googlegroups.com:

N Cook wrote:


I would suggest your speakers are now wired
L-C-R
where C is a common connection but not connected to ground G (black)
L-GG-R
properly
Interesting... I'm still wondering how something like that can just
happen.
And if I'm trying to think of a workaround...should I try to ground the
speakers? Perhaps run a jumper wire from one (--) (black) terminal to
the unused AM antenna's GND? Or is that just gonna cause one big
short-circuit...?
The amp's mains connection is 2-prong.

First thing to do is *test* to see if this is the case.

Disconnect the G leads (both speakers) from the unit, tie them together,
and then temporarily connect them to any known ground on the unit (such
as the one you mention).

Listen to tell whether the problem goes away. If it does, then you can
open the unit and figure out why the G speaker connectors aren't
connected to ground, and fix it.

If the problem is still there, this is not the solution. Reconnect both
G speaker leads to the speaker connectors on the unit. Continue looking
for cause elsewhere.