2. analog
  3. 185630-183416

Turntable Thrumming

I'm a new member and have been following the forum for a while.  It's a pleasure to read the learned insights of the members and get information on a wide range of subject matter.

 

I recently bought a Pro-Ject X2B turntable and am generally pleased with its performance.  But I've noticed a low thrumming sort of sound.  Not really a hum or a rumble, just a low frequency low cyclic rate sound.  It's not very loud and only discernible during quieter passages of music or between tracks.  The turntable sits on a very heavy acacia wood table.  Any thoughts on the source of this sound?  Also, any advice on record weights and better feet for this turntable?

 

Thanks,

John Cotner

New Ulm, MN 

jrcotner
jrcotner OP
60 posts
 

It is cycling at about one cycle per two seconds.  The actual sound is probably 500 Hz or so.

jrcotner OP
60 posts
 

I started working from the amp to the turntable to find the noise, and discovered that once I removed the lid from the turntable it went away.  I had played records with the lid up, which seems to have amplified the noise. 

mijostyn's avatar
mijostyn
8,223 posts
 

That would be platter rotation speed. Your platter is rubbing something or it might be warped. The only other possibility is a bad bearing. Both are warranty issues.

jrcotner OP
60 posts
 

How do I check for either of these?

noromance's avatar
noromance
9,482 posts
 

The lid is acting as an amplifier of acoustic feedback from the room and feeding it back into the system.

Remove perspex lid if applicable.

once I removed the lid from the turntable it went away.

 

More to discover