Fidelity Research cartridges

Dear Marco, you may simply use a good - solid - shrink tube and fit it over the armtube. It will dampen the armtube as will blue-tec or similar damping materials.
However - I still am sure, that the FR-64s does not need that special treatment. It will alter the sound - no doubt (already by increase moving mass). But that is always a matter of match with the cartridge in use.
Todays cartridges often tend to be very present in the top-octaves.
Here it might "tame" the sound.

Cheers,
D.

Dear Marco: The one " tool " that I'm refering in my last post ( I know that you are not asking me . ) and that I assume JC was using is a short piece ( around 35cms long and 1cm wide. ) of a clear/transparent stretch material ( it is not a hard material but a flexible one that is very light/weight. ) that serve to wrap in " helicoidal " way/form the tonearm arm wand.

This device help a lot to lower the resonances/distortions on your FR66 along that you use the FR-66 in static balanced way.

Due that the weight of the device is really small ( I think no more tha 5grs. ) it increment maybe the tonearm effective mass by around 2grs that can't alter dramatically the cartridge resonance frequency in favor of better performance due to lowering the toearm/cartridge " distortions ".

Now IMHO if you want to achieve a better quality performance from your 7fs the Micro Seiki MAX ( with J arm wand ) is a lot better than the 66 or even,like JC point out, the Ikeda 407 will make better, I prefer the MS MAX and certainly too the 66 is not the best match for the Titan's .

The commercial job for that arm wrap was made by Sumiko some years ago and today ( for what I understand ) is out of production.

Regards and enjoy the music.
Raul.

Well, probably it is depending on System colorations, but in my System I tried a Skala and a titan i with Triplanar, Phantom, Davinci, Kuzma airline and I got the best performance with FR-64s. By far. Now a Helikon is running and it is really good. Old Arms can have some merits, but I guess, my System alignment is better than others (heheh)

Dear Syntax: Maybe your system alignment like you say is better but IMHO I think that you like more the " higher " FR tonearm distortions.

Regards and enjoy the music.
Raul.

Syntax: and nothing wrong with that because that's what you like it.

R.