This inverted bearing SP10mk2 motor was born due to a badly damaged bearing in one of my spare motor units. The bearing was so badly damaged it was irreparable so there was no risk as the motor was parts only.
The goal was to reduce the chaotic wobble inherent in every SP10mk2 I have measured. Don't get me wrong here the mk2 is a very capable TT and modified by remote mounting the motor and a POM platter is a giant killer. This is an attempt to take it to the next level to compete with a $300kUS Goldmund Reference.
Permalli plinth with risers for motor and tonearms. This is an improvement over the resin/bento plinth.
The motor is remotely mounted and connected to the SP10 chassis via an umbilical cable.
The platter is 40mm 6061 T6 aluminium with 30mm POMC fixed to the top. LP spindle is decoupled and the large sleeve on the top of the motor does not touch the POM, the only connection between the motor and platter is aluminium to aluminium. This was done to decouple the POM from the motor.
The LP spindle is threaded for a screw down reflex clamp to ensure the LP is coupled well to the platter, it also flattens most warps effectively.
I took this SP10 to a friends house to benchmark it against his Goldmund Reference, how did it perform, well here are his words. "The WJ turntable was sweeter and more fluid than the Goldmund"
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