Why do my bass drivers shake violently listening to vinyl


Hello Gon'ers,

Help needed. I took the grills off my new Vandersteen Treo CT's recently and noticed that when listening to vinyl, the bass drivers shake violently, meaning the amount and frequency in which they travel in and out. Then I played the same pieces of music from Tidal and they were relatively calm.

Is this some kind of feedback loop causing this? Has this happened to anyone else?

Thanks!
Joe
audionoobie
Thanks @stereo5 I think that is the route I will go down. For my own understanding, is this a turntable feedback loop? The low frequencies being put out by the speaker are traveling along the floor, into the rack, picked up and amplified by the cartridge and phono pre and sent back out the speakers further exacerbating the issue?

I really appreciate everyone's responses. This has been a big help....
@audionoobie re:
@williewonka how can I tell if the bearings have any play in them? Not sure what you’re referring to.
Simply hold the arm between thumb and finger and gently push/pull the arm - if there is play you will feel a slight movement or feel a clicking

This is not common, but can occur - if this is the case the beerings need adjusting (if possible)

Regards






You already have anti vibration feet designed by Technics for their new G series. The cabinet is a 4 layered construction. You DON’T NEED any springs or butcher blocks or any platforms under your turntable (these crap is for belt drives).

Technics turntable can be used by PRO near a HUGE sound system with tremendous bass response, probably 1000 times higher SPL than from your speakers.

G and GAE are top model in SL1200 series and stock feet are very well engineered, but if you want to try something else you have to check Isonoe (they are made for Technics).

Read this topic.

Unless you are not placing your turntable right on a SUB I think the problem is not the feet.