SP10 Mk II vs Mk III

I never saw a Kaneta mod up close but only in Japanese magazines. The Kaneta approach make sense to me. I will not get into the power supply modification and I doubt that it's necessary. It might work better for SP10 Mark 1 since its power supply is not as sophisticated as Mark 2. Anyway, I don't know if any of you have taken the motor out of the chassis and if you do you will see it's bolted on a thin layer of aluminum flange. The chassis is in essence a box and it resonates. The ultimate mod would be to take the motor out of the chassis, extend the cables, and mount the motor onto a solid block of whatever material you think is good for fighting vibration, slate, wood, metal, whatever. I just feel that audiophiles who are spending thousands of dollars on a plinth that cost way more than the turntable itself should look into the flaw of the actual mounting scheme of the original design. It is one of the problems I have with typical idler table is that all these loose parts dangling under the platter and the bearing is mounted on a flimpsy chassis and then the chassis is bolted to an overkill plinth; the whole idea just turns me off. I just wish the idler wheel can be placed outside of the platter so the platter bearing can be mounted on something more solid. Notice there's a school of belt-drive tables refuse to mount their bearings on a box and the plinth is as small as possible to avoid big vibrating surface, such as the Simon Yorke or Brinkmann. The Teres idler approach makes sense to me. The SP10 is able to be mounted in such way with no problem. I intend to do that one day. Sigh,... when I have the time, of course. :) This is an exciting thread and it's great to see an excellent direct drive table like the SP10 finally getting the attention it deserves. Its' time to think outside of the Linn box. Happy building and happy holidays!

Hiho, Go over to Lenco Lovers and take a look at the PTP3 top plate, made to conquer the very problems you cite as regards idlers. I'm working on that one, too. You can have a used Lenco and a PTP3 for under $500.

Do you think one could just remove the motor assembly from the existing SP10 mkII, extend the cables that go to the motor from the underslung part of the power supply, and then mount the motor in a plinth? All you'd need to do would be to craft a top cover for the tray of parts that lies underneath in the stock unit. Could conceivably be done without any fancy new electronics. Or could it? Albert, did you think of that?

I took the motor out before. It's not hard to do at all. The motor is attached to a ribbon cable that is detachable to the pcb inside the chassis. One can get a matching ribbon cable connector and extend the cable and you can make the motor independent of the chassis. Obviously you will lose the function of the strobe light and magnetic brake. You will end up with a three piece monster: plinth for the motor, original chassis housing all the electronics for speed and on/off switching, and finally the power supply. It would look as elegant as the two piece combo but I firmly believe that's the ultimate. If you are savvy enough with electronics, you can put all the circuit boards in a customized enclosure or an amp chassis with switches.

Correction: The three piece monster will NOT look as elegant as the tradition setup.

the plan for the Steve Dobbins plinth for my Mk3 will be to remove the motor/platter from the Technics case. according to Steve; who has done a few of these Mk3's 'nude'; is that it further separates the Mk3 beyond the Mk2. since the Mk3 has quite a bit more torque than the Mk2, the casework is under much more stress, and limits control of resonance. directly attaching the motor to Steve's plinth design pays definite benefits. i did briefly hear Steve's own Mk3 with this design back in September in his room and it did sound wonderful.....but it was a very brief listen and i had just driven 500 miles....

in any case i am taking Steve's word for this and going 'nude' (without the casework) on the Mk3.

i do like the look of the stock Technics casework and how it integrates into my Mk2 plinth and how other Mk2 and Mk3 designs look with the case; such as Albert's.....compared to the 'nude' look. Steve is reworking his design from an aesthetic perspective for his next round of 'nude' Mk3's.

on a related note; i have put my Mk2 up for sale as those funds will pay for Steve's work on the Mk3 (and keep SWMBO happy). so i will not have both the Mk2 and Mk3 at the same time. i can still 'guess' later about how they compare but that is the best i will be able to do.