Fidelity Research FR-64 vs. FR-54

thekong insist in that airborne high distortions in my system/room because he can't not onloy understand it but even imagine any system reproduction with out that ! ! !. Is not his culprit, just can't understand it yet ? ? ? and if insist in that subject he will not ever.

Dear Raul, maybe I don't understand, but I am sure real expert like Mr J Carr must know. As I have quoted before, here is what he had to say on the subject (my emphasis by capitalization) :

BTW, I wouldn’t recommend combining the phono preamp together with the power amp. THE SOUND OF THE TURNTABLE IS TOO MUCH AFFECTED BY VIBRATIONS TRANSMITTED THROUGH THE AIR AND GROUND. FOR TOP PERFORMANCE THE TURNTABLE SHOULD BE IN A SEPARATE ROOM/CLOSET ISOLATED FROM THE VIBRATIONS AND AIR PRESSURE FROM THE LOUDSPEAKERS. If you were to go with a combination phono/preamp/power amp together with the turntable in an isolated room, the speaker cables would likely need to be v-e-r-y long.

https://forum.audiogon.com/discussions/best-phono-preamps

On reply, you said the following:

Dear @thekong : Look, I never said that air borne does not produce vibrations/distortions. In the other side, I already did it that test.<

So, apparently you are claiming that while airborne vibration do affect others systems, your system is somehow immune to it! Problem is you can’t even come up with a theory on why that is so, let alone proving it!

Maybe, your room / system is so out of this world that physic works differently over there!

No one deserves to stay sticky where he is " now ". We have to move to enrich our day by day audio life.

So very true! Look at where you are, drilling on the same old things all these years!

You probably should stop living in a delusion!

Raul, Did you read my post from 3 PM today? In that post, I acknowledged that solid state devices can be put to good use in audio. Yes, the quote from the IEEE is an old one; I may even have posted it once before. When I come down adamantly on the other side, it is mainly because your attitudes are so infuriating, and I feel the need to be as dogmatic as you, only on the other side of the argument.  There may be people who read this crap and take it seriously, and I don't want anyone going off with a bad impression of tubes per se. Yes, for sure, I use a balanced differential hybrid cascode at the input to my phono stage, using the very same bipolar transistor that you use, or used to use, in your phonolinepreamp, as the bottom half of the cascode.  The MAT02.  It is very quiet indeed, but the main advantage is tremendous high gain. (The MAT02 has a transconductance of about 500 with only 10mA of current. No tube can do that.)  Because the gain is so high, I can anyway maximize signal to noise by keeping the volume control around 8 or 9 o'clock, where I even have enough gain for the Ortofon MC2000.  But keep in mind, the top half of the cascode, and every active device downstream, is tubes.

Like I also said above, if you want to lend me a phonolinepreamp, I would be pleased to audition it.  If you would just stop being a butthead about tubes, we could have other serious discussions.

By the way, please tell me about some of the revolutionary new transistors that are so radically different from what came before. FETs and MOSFETs are no longer brand new.

@lewm :  """  people who read this crap and take it seriously, and I don't want anyone going off with a bad impression of tubes per se. """

crap?, only for those gentlemans that don't want to understand the tube " crap " subject in 2017.

Here in México people say: " that the worst deaf man is the one that does not wants to hear "  and " that the worst blind man is the one that does not wants to see "  . Whom are you?. I want to think neither because one thing is that you like ( you have no alternative because you don't want to change: yet. ) to defend what you have and the other is that you have high ignorance level that I know for sure you don't.


""  using the very same bipolar transistor that you use, or used to use, in your phonolinepreamp,  """

wrong, I never used the MAT02/03 in the Essential. These are very old Analog Devices items and very good ones. As a fact those devices comes in my ML monoblocks ( this amplifier design I think is unbeatble even today. It's a " electronic lesson for any one. ).

No, we use " discrete " single matched bipolars that we choosed in between more than 10 different bipolars in the market. 

""  if you want to lend me a phonolinepreamp "", 10 years ago maybe I accepted not today. 

Not today not just because I " don't want it " but because first you have to take actions to move on where you are. If your attitude to do nothing but only critics with out real foundations living sticky in that " crap " you never grow-up and certainly I can't borrow my unit.

Things are that I can see that almost none wants to do nothing to enjoy MUSIC and it does not matters what you think about.
Yes, I know that you think that you are improving your analog experience but in reality you are only walking with back-steps and side-steps but improving: NOTHING.

@lewm : wake-up. You are in the road of a Formula 1 race " improving " your cicle/Honda Civic to compete against the true real F1 cars ! ! ! 

Why is so dificult to you and other people to understand it. You are trying to compete in that F1 race with a car of the Fangio times against the today top car technology.

It's RIDICULOUS for say the least. The name of the game in audio is: MUSIC and that'0s why exist all those net forums: to learn about as we learn here in Agon.

Regards and enjoy the MUSIC not DISTORTIONS,
R.

Dear @lewm : Do you know how after several years arrived where today I'm?:

some day ( and after that I continue with the same questions. ) I thougths:

what if all what the AHEE teached me and that I learned and living with is wrong?  where all those " wrong " audio subjects are? how to change and test these changes'?  and I took seriously all those and other questions and took ( I'm still doing. ) several actions. I'm not married in any way with audio but with MUSIC and nothing less.

Please do it a favor and ask your self something simple:

what if all those Raul's " craps "  are true?

I still make me questions as: what if I'm wrong in " this " or " that " ?

This is the attitude with we can really arrives " there ".

Regards and enjoy the MUSIC not DISTORTIONS,
R.

Dear @lewm : Curious that you named the MAT02 and totally " weird " that you think I’m used in the Essential.

That matched bipolar pairs along the MAT03 were used in the late 80’s by ML and even that are good devices are not what we were looking in our near " perfect " Essential design and that’s why we took a very hard very hard task to choose individual discrete bipolars and not only that but we choosed/tested diferent manufacturers where even that almost all were made it the same did not sounds exactly the same. After the choice the hardest task was to have matched pairs that we can’t do it by our self, this task was responsability of a México University. No, not all similar bipolars sounds the same. Yes, it's more easy to handkle and to design a circuit with MAT kind of devices than single discrete bipolars, remember that single discrete bipolars has not the very high gain in the MATs and that was an additional issue to solve in the Essential design.

The ML circuit/stage where goes the MAT02 and 03 are a perfect circuit where those MATs are surrounded by a clever proved complementary devices.

Come back to the Essential I remember that in the external power supply we found out that simple circuit resistors ( not power resistors. ) changes makes that the Essential performs a little different. Extremely dificult to be aware about and we found out this by " accident " and after that we tested resistors everywhere in the power supply.

In those old times and before B&B was bougth by TI before any commercial source for naked resistors by Vishay we already were using it as many other today top parts.

No, my Essential can’t mate with the poor electronic designs you own. How can do it? is just impossible.

Even that’s out of production that design is years a head any other in today audio world. Maybe you don’t understand my past posts in this thread but our Essential was the very first Phonolinepreamp with the Neumann pole designed in the rigth way, the firstb one in the audio world: got this? understand this? and that is only one of " the first.. " and more important: performs just fantastic!

If I remember I offered to you and refuse to buy it. Big mistake.

Regards and enjoy the music,
R.