2. analog
  3. 1299552220

Woofer sucking in and out

I have a problem with my analogue set up that once it starts play, the woofers of my speaker will move in and out like crazy, unrelated to the music! It relates with volume as when the volume is low, the woofers will not move as much. May it has to do with oscillation between cartridge and arm but my set up is new. The turntable is Acoustic Solid-Transparent and rega301 arm with cardas wiring and weight mods, Herron VTSP 3A pre and VTPH phono. I wonder if placement has anything to do with it or power connection.
I hope someone who has the same problem before can give me some hints.
Thanks.
luna

Showing 2 responses by albertporter

albertporter's avatar
albertporter
4,949 posts
 
From your description I'm guessing turntable isolation is the problem.

Is the turntable near the speakers? Is it in a room with a suspended (pier and beam) floor?

Lots of ways to help this situation, the best are all mechanical in that you resolve the problem by removing the interaction. Those options include a wall bracket, isolation stand, isolation feet or maybe even several of these together.

The fast and easy way is a rumble filter but it cuts low bass and puts another layer between the music and your ears.
albertporter's avatar
albertporter
4,949 posts
 
Your idea is good, just happened that it brought about another problem. I've had things like that happen ever since I set up my first system.

If you don't make some mistakes you're not trying :^).
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