Tonearm mount to the plinth vs arm board vs rotating arm board vs isolated tower


Hello,

I am rebuilding a Garrard 301 and looking for a plinth. I am planning to buy 3-4 tonearms to try. I would like to know which is the best way moving forward.

Is there a difference between mounting a tonearm directly on a solid plinth vs arm board (same vs different materials) vs rotating arm board vs isolated tower. 

Thanks
Nanda
kanchi647
Halcro,
My TT is a labor of love. I designed, machined, & built it myself over a couple year period.
  • The platter is 4" thick solid 6061 aluminum (powder coated) with a 1/4 inch of delrin bolted directly on top.
  • The plinth is 2" thick, also 6061 but dampened with soundcoat material from parts connexion.
  • The bearing is a little complicated and I’m not going to get into specifics, but the thrust portion & the sidewall portion are separated. Both are attached to the platter with as little interface as safely possible. It is made of aluminum with a very thin hard coat material in the "wear" sections. It is absolutely smooth without noise or "vibrations".
  • Tonearm tower (or pod) is made of aluminum, brass, ceramic, & delrin. I have it set up in a tripod manner for rigidity.
  • Flywheel is also powder coated 6061 aluminum as is the motor cover. The motor itself is a Hurst.
  • The record clamp is delrin, anodized aluminum, & acrylic stuffed with quartz powder.
  • I purchased the tonearm from ViRa (12" version)
Although I’m sure there is better, it really does sound great. At some point I’ll dampen the platter with brass or lead-shot type materials, & probably do the same to the plinth & flywheel.

Sorry, no current pictures on-line chakster.


Sorry, no current pictures on-line chakster.


I remember this Japanese super heavy stuff from Toho, i’d like to buy one of these for Victor TT-101 and Denon DP-80, tonearm base also looks very nice.

Italian company Torqueo Audio introduced universal arm pods, here is one with Ikeda tonearm.


Chak, To your knowledge, is Toho still in the business of selling those accessories?  The Torqueo stuff is beautiful (like a seashell, apparently) but not as substantial as Toho's.
That Toho stuff is fabulous.....👍
I don't believe they are still active....?
Thuchan has one of their TONEARM PODS...immensely heavy 💪
I think it is made from cast-iron 🤔
But I've never seen their turntable bases before....
That company realised that weight/mass was a critical element in the separation of turntable base and arm pods 🧐
That was also the fundamental principle espoused in my COPERNICAN THREAD nearly 10 years ago.....
And the reason I designed my arm-pods as CAST BRONZE.
HERE are the finished armpods.
What I DIDN'T appreciate at the time....was that the same principle of weight/mass applies to the TURNTABLE PLINTH 🥴
I began with a MINIMALIST PLINTH made of stainless steel as described in my NUDE TURNTABLE Thread.
After learning my lessons.....I decided to design a turntable 'cradle' out of cast Bronze or cast Iron but the prices I received were very high.
But a SOLID GRANITE CRADLE, whilst not as heavy as cast metal.....was GOOD ENOUGH and relatively affordable 🤗

I agree with @lewm about the 'beauty' of the Torqueo products....but the MASS is just not there 😢