Re: Beogram 4002 with harmonic feedback problem

Piaf — Wed, 19 Dec 2007 08:57:26 GMT

Thanks Peter,

I’ll try that. I’ll bet you are right.

Jeff

Re: Beogram 4002 with harmonic feedback problem

Peter — Wed, 19 Dec 2007 02:06:43 GMT

In the first event, I would remove the lid completely and see if this cures the problem - I suspect it will. If it does, it will be a case of putting it back on very carefully! Had a similar incident with mine once.

Beogram 4002 with harmonic feedback problem

Piaf — Tue, 18 Dec 2007 23:16:12 GMT

My Beogram 4002 has “developed” a disturbing deep-bass harmonic feedback. The sound builds and builds to a frightful level unless the volume is immediately lowered.

My first thought was the suspension was not completely unlocked. Some adjustment was needed, but this was not the problem.

Then I noticed after a prior slight adjustment of the dustcover had rendered the black box that covers the arms to slightly touch the back of the dustcover. OK, simple solution… but not so fast, adjusting the dustcover reduced the harmonic feedback, but did not eliminate it.

Out of pure frustration, I decided to isolate the turntable with heavy padding under the turntable and problem “solved.” Dealt with would be more accurate. The padding looks tacky and only masks a real problem.

Any idea for what might be causing this major bass feedback?

The Beogram 4002 sits atop a massive McIntosh consol and is completely separate from the speakers that flank the consol.

Many thanks.

Jeff

BeoGram

Re: Beogram 4002 with harmonic feedback problem

Re: Beogram 4002 with harmonic feedback problem

Beogram 4002 with harmonic feedback problem