Brinkmann vs TW Acustic

Ct0157
FWIW my TW AC with BN PSU and 3 motor unit takes 8 seconds for the platter to come to a complete halt after pressing the stop button and with the tone arm at rest

Cto157
My Raven AC with 3 motors. Two at the side and one at the back takes 6.7 seconds to stop based on 4 samples.

Cheers

Moonglum (and Thuchan), I kind of regretted the acerbity of that post. What Thuchan proposed is not nearly as "sinful" as were the designs of the AR turntable and the early SOTAs (and maybe also the LP12; I wouldn't know). His set-up is not going to allow nearly as much relative motion between the motor pulley and the platter as did the two I cited. Further, I am sure he uses string or some other relatively non-elastic belt; the AR and the SOTA used elastic belts, making the problem worse.

I used to hang out at a dealership where the proprietor was fond of the Verdier. He used to mount the turntable and the motor about 4-5 feet apart, as was the custom. This meant that the two had to be on separate supports, using string drive. The shortcoming of that set-up for the Verdier would be that the table itself is mounted on "spongy" feet; as I recall it actually can rock a little if you push on the chassis. That would concern me, since the motor is immobile.

Isolation is very important with TTs. I have a Kuzma XL4, the platter is 22Kg. total weight over 100Kg with 2 arm towers. It sits on a 110kg sandwich of slate and marble, then on an an industrial acoustic filter material ( filters 5-8HZ up) of about 6cm thick. Then on a sprung table.
There is no breakthrough when medium output (0.5) cartridge sits on a stationary record with my arc ref 2 on low (51db, my normal setting) gain volume on max. I can play blank grooves on max (140 on pre) no feedback. Loud listening level is 80-95 on pre.
The TT sounds cleaner and background is quieter, tremendous dynamics, with this set up.

Dear Dctom: ++++ " Isolation is very important with TTs. " +++

agree, critical subject. We need " absolute " isolation/damp on TT/tonearm/cartridge combination. Seems to me that you are really near that " absolute " isolation/damping.

In other thread I posted:
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I agree with you that if you already losed groove information you just can't recovery and then the main target down there is to recovery all the recorded information in the grooves and this can do it " only " by the cartridge and from here all what you want: from TT mat to tonearm board passing for different steps to damp everywhere the analog rig stopping that feedback Tonywinsc and you touched.

++++++++++++++++++++++++++++++++++++++

Btw, we need " absolute "/perfect isolation/damping at each step at each link in the whole system audio chain. As better damping as lower distortions we hear and as better quality performance level we can enjoy.

Regards and enjoy the music,
R.