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I recently got a Macintosh c32 preamp and MC 2125 power amp. The left channel seems to drop out if i bump it or walk to heavily near it. I can get the channel to return by tapping on the volume knob or the expander knob of the preamp or even tapping on the case of the preamp I was wondering if anybody had heard of this problem and if it is an easy fix?

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  • Audio Player... Master
  • 5,167 Answers

Very easy!
It's just a bad soldering joint somewhere. It just a question of looking around and then resoldering.

Posted on Oct 19, 2013

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6ya6ya
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Posted on Jan 02, 2017

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VOTIT
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SOURCE: Sound through one channel

Only the right channel had a sound,the left channel is mute, whatever adjustment you did and whatever balancing you done nothigs happen,even you interchange the speakers. The problem is in the power amp. The STK IC there is busted already, it's better to change it with a new one so the performance become normal again.

Posted on Jun 17, 2008

mrwtech
  • 59 Answers

SOURCE: How do I connect a Polkaudio powered subwoofer (psw 125)

Connect a set of stereo RCA cables from the 'Output 2' on the Hafler to the line imputs on the Sub.Turn on the '1+2' output switch on the Hafler and rock out!

Posted on Dec 17, 2008

  • 85 Answers

SOURCE: Pop in left channel

Check your cabling,sounds like earth break

Posted on Jan 19, 2009

  • 4234 Answers

SOURCE: unbalanced LEDs> amplification problem, or mere graphic drop out?

This could be a defect in the metering circuit. In order to verify this, you should measure the output externally. Get that external measurement and post the results here. We'll continue from there.

Dan

Posted on Apr 12, 2009

freetek
  • 5568 Answers

SOURCE: Pioneer A110 Amplifier - quiet right channel.

> squirt some contact cleaner into it
An appropriate suggestion with one caution; look for a statement on the cleaner label that it will not harm plastics. I have seen some plastics not dissolve, but crack and disintegrate, along mold lines in particular. If you find no such statement use very sparingly and try to prevent over-spray.

Posted on Feb 24, 2010

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