Hello,
One last problem I have with my Beocords is that the noise of the motor can be heard in the background of the music: it is admittedly buried in hiss but it definitely can be heard on quiet passages. It is heard as a faint buzz. When the motor doesn't work (I remove the fuse) there is just hiss with no trace of hum whatsoever. The ground wire is linked on the 6000 (original motor) and it is suppressed on the 8000 (new, smaller motor).
Any clues?
Thanks in advance,
Jacques