Fidelity Research FR-64 vs. FR-54


In a prior discussion, I had asked about tonearm suggestions for a Luxman PD-441 table that currently has a Denon DA-307 tonearm and Grado The Reference high output cartridge.  Many suggestions were provided.  A Fidelity Research FR-64 was suggested as a simple replacement.  I'm wondering if the FR-54 would also be good, being that it is mentioned in the Luxman manual in the same category as the Denon arm on there now?
bdunne
Dear @dover : At least tell us why those amps are slow ones.

It's pity that a gentleman like you with your knowledge level come and post " something " with no explanation, with no adcvise to, with no real audio target other that spread your bad attitude.

Try to solve it and give your advise here.

R.
This thread is about FR Arms and was usually hacked from our "beloved" Mexican member who lives in his own world (of distortions).
Let’s be honest, his part time knowledge is not enough for today, his inability to connect something to get a better result is well known. His USA tour was not really successful, some are too polite to name it, but a few told me, that Taco man is in reality even worse than at Audiogon.
High End Made in Mexico needs a bit more than distortion monologues which pop up like a broken record.
Enjoy the music and not distortions greetings is the pale result from someone who creates his own truth.
Dear @dover : Only to put some ligth on you about my "  use them for boat anchors " / ML monobloks:

in those old times ML designed and manufactured the the pure class A ML 20 Reference monobloks and in those times the word Reference was a serious meaning ( not like today ) and the 20's was a true Reference amps that outperformed any other design in those times. ML was really serious about and the 20's were the first M items with the Reference ML status.

Years latter they designed a the class AB 23 stereo amp that in some areas performed better than the original 20's so ML decided that their References must lives as References and modified it and born the 20.5's. 
Even for the 20's owners they offered the ML factory up-grade.

Well, time pass on and the ML 23 was up-dated to 23.5 status ( I owned this one and was really good. ) that again performed better than the 20.5's and they redisigned it and born the 20.6's and again offered the up-grade to their customers.

The 20.6's that I own are not a 20.5 up-graded but ML factory 20.6's new units and are one of the latest 6 pairs where ML instead to use teflon in the circuit boards they made it something special and those cirduit boards came with Arlon and performs at a little higher quality level that the ones with teflon.

In the other side and due that you can't give me any advise about how to measure my " anchor "'s speed I did it my self and I found out that performs:

0 to 60mph in only 5 nano-seconds. I hope this figure can compete with your tubes unit.

Regards and enjoy the MUSIC not DISTORTIONS,
R.