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 ct0517

ct0517's avatar
ct0517
2,041 posts
 
Its an isolation problem as other have mentioned - keep experimenting to find the location that causes the least disturbance. Understanding how the sound waves radiate from your speakers based on how you set them up will help alot here. Keep it away from the sound waves as best as possible.

What type of clamp or weight are you using. Before spending big dollars on rings get one of these. Used with the rubber washer under the lp it will flatten the record edge to ensure it touches the platter all around.

http://www.needledoctor.com/JA-Michell-Record-Clamp?sc=2&category=421

If you are using a weight alone in the middle it will make the lp ends go up as well.

A filter is a band-aid as other have mentioned and not a fix.

Good Luck
ct0517's avatar
ct0517
2,041 posts
 
Bright-star-audio

Absolutely the arm/cartridge relationship needs to be correct. But if you read the post from the OP.

"I have moved my TT to another spot at the back with some success. The movement is not as big as before."

With no other changes to cartridge/arm. This indicates an isolation/vibration issue.
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