Seeking advice on an unusual issue.
I have a Linn LP 12 , 70's version which has had no upgrades to motor or power supply
Power supply is original and has been called the 'Plessy" version in some forums.
Arm is a Stax and the Cartridge is Ortophon 2M Bronze , Amp is Music fidelity MS6
and feeding a pair Celestion SL6's. Yes its very old, but, work beautifully.
It is a vinyl only system.
My problem is that the TT appears to be unable to play " audiophile records" that is 180/200gram recordings.
Normal LP's have no issue. Speed on TT is at 33.3 and checked regularly.
Music from these recordings is unplayable. Checking the speed while recording insitu, speed accuracy does not deviate.
Can anyone enlighten me as to why this is the case?
Is it power supply or Motor or both? I have replaced the belt, cleaned and re greased the bearing and given everything a spring clean.
I am new to the forum and
Any help would be appreciated.