A Copernican View of the Turntable System


Once again this site rejects my long posting so I need to post it via this link to my 'Systems' page
HERE
128x128halcro
After around 7 months of annoyance and concern, I finally managed to assemble my nuded sp10 a month back. It took 6 months to fix my TT (note to anyone with a bum sp10: send to Bill Thalmann as *first* and only option) The TT sits atop 3 AT 616 footers and I had custom machined 2 tonearm pods, one for my Denon DA 305 arm and one for my Technics epa 100 mk2 arm. Both are stainless steel. One can view the pods in my systems page.

The Denon pod was made first nearly 5 months ago, before I had a handle on its conception. It is 3.5" wide and 3" tall. It weighs around 8lbs and has a collar mount made specifically for my Denon arm. Pin screws in the collar allow for VTA adjustment. This collar 'system' allows me the flexibility to swap different tonearms into the same pod. In fact, I had another collar made for a Syntec 220 tonearm I have (but don't use--because that arm is a PITA to adjust). There's a slot cut into the rear of the pod to accommodate the tonearm wire. The pod sits on 3 footers that are modeled after the footers that the Micro Seiki 5000 sits on. Smaller of course. They screw in/out to allow for leveling of the pod. The pod was very well machined and finished and looks spectacular. The guy who did it, Mirko, is an awesome machinist. I was worried about the light weight of the pod, but it hasn't turned out to be an issue as far as I can detect. The denon 103 that is mounted on it has never sounded better in my system.

The pod for my Technics arm weighs 16lbs and was machined from a 20lb block of stainless. It is 4.5" wide and 4" tall. For those familiar with the EPA 100 mk2, the arm's mount is quite large in diameter and so a large chunk of steel had to be cut away to accommodate it. Mirko asked me if I wanted another swappable system with this pod, but I decided against it since I had/have no intention on parting with this tonearm. The pod sits on 3 spikes that screw in/out for leveling and the spikes sit on 'pads' (or whatever you call them). There's also a rather largish hole in the back to accommodate the tonearm and ground wires. Given its weight, this pod is very stable and I have no concern about unwanted movement.

I have been acclimating to the sound of the new system. A couple of things to remark. First and foremost, the sound is relaxed, and what I had been judging as the 'exciting' and 'dynamic' sound of my previous set up , I now think of as distortions. Secondly, I can now better hear the fine distinctions between the various MM carts I have. I take that to be a positive sign. On that note, I can say with confidence that the AT 20ss is a killer cart and supplants my previous favorite, the Azden ym p50vl.

Of course, I cannot attribute these benefits to the pod alone. There's the not insignificant addition of the epa arm, which I had never heard before. Nevertheless, I can conclude that the copernican system does not do detriment to the sound; on that contrary, it is able to produce a very fine and very refined sound. At any rate, I'm satisfied.
Nice work Banquo,
An Audio Copernican's best friend is a good machinist :^)
Hopefully you will report back with further observations when you have listened to more of your favourite records?
Cheers
Halcro
Banquo363& Halcro, I noticed that cover on the underside
of the SP 10 is not removed so the AT footers are below
this cover. Is this solution optimal? Ie should this cover
not be removed?

Regards,
Banquo

I found those AT 616 footers give you a lot of flexibility for high your pod can be and they also make fine leveling of the sp10 very easy.

How do you like the freedom you have now to not only use any arm you want but you can pretty much place it anywhere you want on the platform. :^)

Am curious as to what the approximate cost was for the EPA Pod. It is really nice.

Should have my 2nd sp10 up and running within the next couple weeks in the city.

Nikola did you find the room to set up your SP10.

Their footprint is very small with a pod which makes them ideal regarding space.

Cheers Chris
Nandric,
These 'footers' are of course different to my solution with the spikes.
Both Chris and Banquo are using them so they must be fine.
My concern would be if you could lean on the edges of the turntable and induce movement (ie 'rocking')........that would not be a good thing from the Copernican point of view?