Vintage DD turntables. Are we living dangerously?


I have just acquired a 32 year old JVC/Victor TT-101 DD turntable after having its lesser brother, the TT-81 for the last year.
TT-101
This is one of the great DD designs made at a time when the giant Japanese electronics companies like Technics, Denon, JVC/Victor and Pioneer could pour millions of dollars into 'flagship' models to 'enhance' their lower range models which often sold in the millions.
Because of their complexity however.......if they malfunction.....parts are 'unobtanium'....and they often cannot be repaired.
halcro
Lew.

Yes the SP10s are DC motors. Maybe the confusion arose when I said that they are 3 phase. The supply voltage does not swing across zero.

cheers.
Interesting story HiHo......
I agree with you about the sound of violins on a DD.
Perhaps even more so than the piano.....the holding and modulation of a single string when bowed, can reveal the truth about accurate and consistent speed control of a turntable. More than with any strobe or even the Timeline.....with a solo violin there is nowhere a mediocre turntable can hide and if you haven't heard one on a great DD.....you may not even realise it?
It does seem odd though to cram all the added circuitry of the 101 just for the sake of the readout. And to expect people to pay nearly $1k more for it in 1977.
This is a quote from the DirectDrive Website....
At the end of the 70s the japanese audio-industry was in a unique position. They had gained control over the worldwide audio-market, the Yen was cheap and big numbers of well-educated engineers brought one innovation after the other out of their laboratories. The "golden age" of audio had risen - those were exciting times with many new models being developed and announced in regular intervals. At the end of the 70s there really was a sort of race between the mayor-players introducing ever bigger, better and more sophisticated turntables sometimes at very high prices. To understand this you have to know that the Compact-Disc at that time was close before introducing, almost every audiophile had a turntable already so the mid-class market was set. Apart from these reasons the analog flagships of that time were image- and prestige-products of the japanese companies often subzidized by their mass-market brothers.
Machines like the Sony PS-X9, the Trio/Kenwood L07D, the Technics SP-10MkII or the Denon DP-100 were built in a "cost-no-object" attitude that never again arises out of Japan. The best materials, excellent Build-quality, oversizing of all parts and innovative ideas were the characteristical ingredients of the top-decks at that time.
Those machines marked the end of an evolutionary process with non-measurable Wow & Flutter or noise-specifications and they had a sonic quality that even by nowadays standards is state-of-the-art. But 1982 the CD finally arrived and it was the beginning of the end for those machines. All japanese companies concentrated their engineering efforts towards "digital". Production-costs had risen and the Yen was standing higher making export of audio-gear more expensive. This was the time when the cost-cutters arrived and soon dominated the engineers. The analog-battleships developed in the late 70s and early 80s were the first products that were killed by this new ideology. Like Dinosaurs they had become bigger and bigger and now they're end had come.

As you might already know, Halcro, the force of the reverse current can be calibrated via adjustment of variable resistors in the circuitry.
I didn't know this Banquo...so thanks :-)

Let me be clear that I never own an SP10Mk3 so I have no way of knowing whether it exhibits the gray-ish tone in Mk2. All my comments were referring to the Mk2 and the models below it. Just saying...

I have limited experience with Mk3 as my former employer has one and it's wonderful sounding every time I was at his house listening to it and since it's in unfamiliar situation I cannot make any valid judgment but at least it has been a positive experience. Lew's positive take only reinforce the notion.

I am only amused by all the Mk2 plinth making and trying to address something that has little to do with vibration control as if a magic plinth will miraculously fix the inherent design issue of the drive system. I'm sure a good plinth can improve noise level, transparency, etc... but that grayish tone aint gonna go away.

_______
Hiho

I have a customer who has both a worked MK3 and MK2, giving him a unique perspective.

In his opinion the performance gap between then is reduced, post upgrade.

IMO, it is not in the design architecture, it is in the build. The two motors are fundamentally the same design but the MK3 has been fed growth steroids.

Cheers.

IMO, it is not in the design architecture, it is in the build. The two motors are fundamentally the same design but the MK3 has been fed growth steroids.

Richard what a good analogy. I thought that was what audiophiles want. The bigger the better.