Fidelity Research FR-64 vs. FR-54

One full mistake from my part:

" poor design ", I'm not refereing to it self design on those tube electronics but to the poor technology.

R.

Dear @dover : Hysteresis distortion?, well that kind of distortion has different sources and of different kind ( existe magnetic hysteresis, example. ) and can detected as: spurious components/non-linearities in the signal frequency bands, especially on amplifiers. You don’t have to worried about in our design.

Well our four layer circuit boards could be not espcial if I don’t know what you mean for special. Our circuit boards were made it in Silicon Valley and choosed after we tested 4 different build materials in the circuit boards. This is an example only on how the Essential was builded and one of the many reasons the Essential performs with that so high excellence levels.

You name it the Vendetta and Blowtorch ( I don’t know why. ), well no one is a good reference for me. Our non-State of the ART Essential outperforms both easily. Btw, our design handle LOMC cartridges with an output level as low as 0.01mv. The Essential use only bipolars in gain stages and not FET/MOSFETS as the Blowtorch/Vendetta and uses no single internal wire but everithing input to output is hand soldered to the circuit boards.

Btw too, we don’t use it any single chips in the circuit not even the discrete ones but the B&B buffer. Btw, I was in one of the B&B facilities that’s nothing less than " impressive " and that was in Tucson, AZ.

As a comercial product the Essential is irrelevant to the forum but way releveant on what we can have and a target to fulfill.
I don’t know but thinking on people as M.Lavigne could made that I take again the flag of my latest Essential again and produce it. No, it’s not for you. You can stay with your engineering friends that are years a head the legitimate State of the Art: good for you.

Anyway, thak’s to your contribution.

Regards and enjoy the MUSIC not Distortions,
R.

Good to read that finally you are using SS technology with LOMC cartridges. A very good link to start and I hope that step by step and carefully you can follow doing in the time in the other system links.
Btw, that gentleman Andreoli is the same whom took the 103 inexpensive motor and created the Blue Magic cartridges in a price range from 3.5K to 7.5K dollars?

Raul
My MC pre eschews the use of circuit boards, has no wiring, every component is soldered to the other components in free space ( in a 3 dimensional array to minimise component interaction as is done in the Mares Connoisseur ).
For your next build you might want to look at eliminating the circuit boards, and eliminate the resonant and hystereses inducing metal chassis, and all switches in the signal path. If your circuit is as good as you claim, then eliminating the circuit boards, resonant chassis and switches should be an audible improvement of a significant margin.

The answer to your question is yes, the same Reto Andreoli that builds cartridges selling up to $50k and for which he has an 18 month waiting list. Personally I don't use his cartridge but he has some interesting ideas on cartridge tracking/cantilever/stylus profile and the issues of how to minimise distortion on playback. He is a fan of the cantileverless Ikeda MC that I use which is very close to emulating the cutter head action in playback resulting in very low mechanical distortion and phase anomalies on playback.  

Raul, My source for the notion that you use the MAT02 in your preamplifier is.... you.  You told me this in a personal email a few years ago.  In the same email, you in effect congratulated me for choosing it. Or perhaps I misunderstood you; perhaps you just meant that you liked the MAT02 in general and did not mean to imply that you used it in the preamp. It doesn't really matter to me. I did not choose it at random; I chose it based on direct personal advice from Allen Wright, who told me he would use it in his RTP3C, if cost and availability were no problem.  (Read his book "The Preamplifier Cookbook"; the MAT02 is now out of production, so far as I know.) If I am wrong in my thinking that you use the MAT02, thanks for the correction.  It seems you are reluctant to divulge just what transistor you do use in your unit, but isn't the term "discrete bipolar" an oxymoron?  The MAT02 and 03 are "bipolar" in that each contains two matched devices in one shell.  If you use discretes, one for each phase, then you don't use a bipolar.  Since the matching of the two halves in the MAT02 and like bipolar devices is fantastically tight, far tighter than one can get with matching tubes, I don't know what you gain by using discretes, except aggravation trying to match them.  But that's your business and your preference.

In mentioning the CTC Blowtorch, Vendetta, and MFA Luminescence (which I think is over-rated by modern standards), I was only trying to side with you, by suggesting that your Phonolinepreamp may eventually assume similar long term "status", and therefore enhanced value, among audio aficionados, who are nothing if not snobbish when it comes to expensive yet unobtainable gear.  I was not at all implying that your preamp is worse, or better, than any of the above.

And finally, neither you nor I nor anyone else can prove by winning some sort of verbal debate that one piece of equipment is better or worse than another.  Words don't suffice.  And, whether you like it or not, emotion plays a huge role in how one chooses one's components.