CSPort Turntable speed control

Info about background of designer/owner of CSPORT

My name is Machino TOSHIMICHI MACHINO and I am the owner of CSPort. CSPort is a new company that has only been established for 6 years. We are specializing in the high end audio market. All CS Port products have been designed by me. I'm training young engineers to be able to design them in the next few years.

CSPort products are the result of my 3 years of experience in machine tool design, 40 years of designing switching-power supplies and 50 years of hobby audio. My main techniques are in the area of switching power supplies and audio amplifiers, especially noise suppression techniques. The details of the amplifier include not increasing the number of amplification elements, not applying negative feedback, not using chemical capacitors in the amplifier's signal circuitry and power supply, and applying noise suppression.

The TAT2 is characterized by use of a granite base, a stone that has been stabilized for over 5 million years and a 17 kg stainless steel platter to reduce unwanted vibrations by means of weight. The surface of the platter is also mortised and the records are held together by heavy stabilizer.

One of the issues of classic designs is the fact, that the frequency of the motor drive servo enters the audio band. Than this servo noise is picked up by the cartridge. The same is true for synchronous motors because they feature a mechanical servo. It takes some time for the TAT2’s platter to get to a constant rotation, but it is achieved without a servo hence there is less audible noise. TM

Very impressive IMO

Dear @mijostyn : SME 60 and its new tonearm is unique, this is not more of the same and a gift by SME for who can afford.

I’m not saying that Dohmann is not good enough. Dohmann took an after market platfform and made some modifications on it for its TT. That makes me to believe is not in anyway superior to the 60 but for some time you are in love with Dohmann: good.

I was not aware of that anecdot between Fletcher and SME.

I owned Fletcher " The Arm " that was a copy of the Switzerland Breuer design and if I remember manufactured by Jelco. Other " curiosity " on Fletcher was the original Sota Mat where the blend materials were not invented by Fletcher but came from a third part that never shares with David the formula of that mat. The today Sota Mat looks like the original ( I owned 2 of them and were just fabolous. ) but it does not performs because the blend materials are different. No, I’m not trying to diminish the Flecher high reputation.

If some one wants to read the Fremer review you posted here it’s:

https://www.theabsolutesound.com/articles/sme-model-60-turntable-and-va-series-tonearm/

R

Btw, that " sligth blowing " with phono with ears really close is something weird in your system . My phonolinepream Essential 3180 does not shows that " blowing " not only with my 95db speaker sensitivity but does not do it in Guillermo ( close frend. ) room system that by coincidence owns the top model of your electrostatics and the JC-1 but till today my 3180 only is at my place. Lewm owns the 3160 as other gentlemans and other the 3150 that was the design with what we started.

The 3180 is a true up-grade over the 3160 and in other thread I posted that we will manufacture a few 3180 that I think is a must to listen due that you are a way demanding MUSIC lover/expert audiophile.

Dear @sksos  : What did CS port did it it does not matters because the fact is that " terrible " spedd deviation.

About TT servos you already read it what I posted in the other chauncey thread and I know due that you posted there too. Well down there I posted:

""  and we have to remember that all the cutting machines in the recording proccess comes with DD motors and all those motors control its speed by servo. That means that if we can't be aware of the recording used servo then it's no trouble at all."

Lewm owns the SP10MK3 with servo control for speed and this MK3 in several ocasions was used ( the motor ) by cutthing lathe machines. You can ask lewm if he can detect something about servo and he owns a high resolution room/system.

No one can do it. TT colorations always exist, certainly not by the servo but again at the end what counts are the facts and CS Port ( with out dimishing the designer. ) been short in that overall speed issue.

R.

@rauliruegas , Mark Dohmann enlisted MinusK to help design the suspension under his turntable because he realized that it offered benefits that no other type of suspension could. You have to look into what a negative stiffness suspension does. The majority of them are not used under turntables, they are used under scanning electron microscopes and other sensitive lab equipment. The suspension in all SMEs, Avids, Sotas and Basis turntables do not offer any significant benefit over David Fletchers original design. They all hang the platform from springs and add various forms of damping. The MinusK does not work this way and I am not good at explaining it so I encourage you to go to the MinusK web site and read up on it. One major claim to fame SEM has is a construction quality second to none. The one thing they have to do is stop making everyone's decisions for them. I would like to be able to mount my own arm thank you.