SP10 Mk II vs Mk III


A couple of guys here were planning to do listening comparisons of the Technics SP10 Mk II vs the Mk III, in their own homes and systems. Has anyone actually completed such a comparison? I am wondering whether the "upgrade" to the Mk III is actually worth it in terms of audible differences between the two tables. Possibly mounting either table in a well done wooden or slate plinth mitigates any sonic differences that would otherwise be heard. I am thinking of Albert Porter and Mike Lavigne in particular, who were going to do the comparison. Thanks for any response.
lewm

Showing 2 responses by microstrip

The SP10 MkII power supply has three voltages +5V, +32.5V and +140V. The 140V supply is used to power the strobe light. It is simple half wave rectifier circuit using a single diode, protected by a 315mA fuse - always check fuse F3 before anything else.
Albert,
You raised the issue of the tube power supply - I think it would be not be a wise move, as low voltage - high current power supplies and tubes do not combine.
Using a battery super power supply could be very interesting, but however one should be aware of an interesting feature of this power supply: if by any reason the +5V power supply fails, the +32.5V shuts down immediately, protecting the motor coils.