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Creek 4040 Amplifier blown some speakers ?

Had my Creek since 1984 - absolutely brilliant !! However, I think something has gone phut and blown my Mission 70S's.
When the speakers load after power up, they rustle badly and hiss like excessive static, then they don't play anything.

Just bought some new speakers (AE Evo1 Aegis) and have tried connecting them to the Creek, they rustle very slightly but hiss over the music. Need to fix this before driving them for real.

Any ideas would be much appreciated - the amp is too good to give up on.

Thanks in advance, Chris

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I would suggest not using the amp before the problem is sorted. It may damage your new speakers :)

  1. It is possible that your input selector switches may be Noisy. What happens when you operate them, does it exasperate the problem?
  2. Noisy control pots may also be contributing to the problem. taking the lid off and giving the pots and switches with decent squirt of contact cleaner lube (I use CRC2-26)
If you still have issues, is the problem there on both channels?
If it is then there may be a power regulator issue.Is there a DC offset on the left and right speaker output(check with a DVM).

You can find a schematic here.

I am happy to talk to you more about the problem. I would need to talk a bit further with you, just ask away in here.


Posted on Feb 12, 2008

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