Technics SP-10 Tonearm Pod instead of Plinth/Base

Pryso, You got the same idea I had re Raul's non-plinth. When I described it here pretty much as you did, Raul posted that I was incorrect, that his tonearm IS on a discrete outboard mount of its own. While Raul is not alone in preferring that type of set-up, it does go against the prevailing philosophy that there needs to be some rigid physical connection between bearing and tonearm. I personally am not going to say that Raul's SP10 can't sound good. I have just made my own decisions in the other direction, in favor of mounting any tonearm in or on the same physical structure that houses the turntable mechanism. The analogy that is vivid for me is that of a race car driver who gets in an accident with or without his safety harness buckled up. The link between bearing and tonearm assures that both elements of the playback system remain coupled during those rough moments.

LEWM: thanks for the tip on the cutout. Thanks also for the explanation of the arm length issue. Weisselk has also suggested that removing the base of the SP-10 could be a good idea, especially sonically.

Raul and others seem to have had success with a plinthless setup. It's looking like slate for a plinth or semi-nothing. Reports coming in on the cement option are poor. I imagine that resonance is the problem (like granite).

Hello Pyrso: Yes, there is a plethora of info on plinths for the rim drives, and much less for DD crowd. The OMA plinths are expensive...but I starting to believe that a finely made slate plinth is the best (plinth) option. The OMA models look exceptionally well made.
Yes (and Lewn said this earlier too and details it again above)- I think Raul's no-plinth setup is more correctly a semi-detached armboard setup. However, dibs to Raul for the application of his clever thinking.
Plaster of Paris, eh? Any other takers on that idea? Making the mold could be a pain though. I have trouble laying carpet tiles to fit a room let alone making a mold!
Yes- there is a strong valid argument for keeping the tonearm connected to the turntable proper
I'm thinking it's like when there a two cars drive next to each other, trying match speed, and a passenger attempts to pass a egg out the window to the other car while both cars negotiate pot holes and speed bumps!
It might be good 'ol 3/4 chipboard for a standby plinth after-all.

Oh, but those OMA slate plinths...

I have an SL-1000 MK II. That's an SP-10 MK II in the original Technics obsidian base. What is wrong with it and what improvements would I be seeking by changing to slate or some other material? I have read threads like this often but have never yet been prompted to try something different. Part of this is a respect for the integrity of the original design and part is skepticism. If Technics was able to build one of the finest turntables ever made available, would they not have provided a very suitable base? Would they not have experimented with many materials and different masses? When this turntable was offered it was extremely well funded and very capably engineered from a cost no object perspective. What did Technics do wrong?

Dear Macrojack: Maybe nothing but today there are a different way to think or different solutions to the same " subject ".

IMHO there are no perfect products out there, vintage or today ones, and the original SP-10 is no exception.
Maybe your original unit performs better or maybe a little different than any other " solution " that you read through several SP-10 threads.

The only way to be sure if what we have is the right " road " is to test/try a different " road " and decide.

Regards and enjoy the music,
Raul.

I dont think it is a question of who is right and wrong, This is a wonderful Turntable exceptionally well engineered, it was designed for professional use mainly in a radio station, what you need there is precision and reliability, for a High End Turntable you need only good sound, In High end we dont care if your power supply is ready to explode or your cables can catch fire at any moment, or if your speakers barely fit in your room, we just care for sound. I dont think a separate Pod could be fit for a radio station.

Audi uses the same engine for a station wagon and for a sports car, the difference is on the application and what you need it for, you want to carry 3 kids or you want to go fast!

A lot of High end TT do have a separate Pod for the tonearm, and on the SP10 in my experience the comparison is not even close, plus it is very easy to implement, try it out and let us know your opinion.