A `feature' yet unmentioned(unless I missed it?) A DD TT unit that provides good enough torque to sustain resistance to stylus drag, unfortunately exhibits magnetic noise induced into the cartridge as it tracks the inner part of a record. I came against this on Micro Seiki TT's in the early seventies while working at Howland West Audio (Eden Grove Holloway, remember it?) and even after several visits from Micro's design engineers it was not completely cured, unless you reverted to using a Decca Deram ceramic crystal pickup!!! This was otherwise a very fine turntable and if you only listened to highly modulated recordings, wasn't a problem, very quiet classical recordings however......! So, I never bought one, However in '74 I bought a GL75 which I still use and enjoy. Yes the arm is a pig to set up*, yes the `v' blocks wear out, but that takes forty years, yes it IS a jocky wheel drive (completely out of fasion when I purchased it) so what? There is NO rumble (not even today on the original wheel!)Heavy percusive bass (remember early Reggae?) doesn't faze it and there isn't the faintest wobble in a drawn out violine note. The decoupled counter weight on a decoupled arm (rubber `V' blocks) really does give the music a chance to be heard.
* For those that want to try to set up a L75 arm, I've found that for best results the deck must be level, the arms height shoud be so that with the stylus on a record, the arm tube should be horizontal to the deck, there should be equal `clearance' bellow and each side of the arm tube and its shroud (undamaged `V' blocks).
* For those that want to try to set up a L75 arm, I've found that for best results the deck must be level, the arms height shoud be so that with the stylus on a record, the arm tube should be horizontal to the deck, there should be equal `clearance' bellow and each side of the arm tube and its shroud (undamaged `V' blocks).