Recent content by Blackcloud

  1. B

    thumping question

    Powered up amp without pre, very little start up and power off thump and none in between. Would you conclude the problem might be the pre?
  2. B

    thumping question

    No not yet but that is a good idea. I remember having trouble years ago with the push button tone controls on the pre. Thanks for the heads up.
  3. B

    thumping question

    Looks like time to get a tune-up. Thought I solved the problem a few years ago by hooking up power conditioner and plugging in amp to the delay input. Worked until just this week. I believe the sound is a little muddy, not very crisp as usual too. Thanks for response.
  4. B

    thumping question

    New to this forum, and could use a little help. PL 700b with PL 2000 pre has begun to thump at powerup and also during playback, even with no volume. Have owned units since late 70,s (bought new) and have had serviced many times over the years. Any recommendations on what it could be?
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