The Popularity of the Kuzma 4P (11")

@mijostyn : That cartridge is heavy weigth and low compliance and can works with that Kuzma tonearm but other than theresonance frequency issue is that dynamic mass ( 75grs. ) that looks the cartridge suspension during that heavy tortuose LP grooves tracking and that comes not at " free " but through the time could be negative/degradation consequwences for that cartridge.

The main issue for any cartridge and specially for tonearm designers is to give all facilities to the hard cartridge ridding work and such heavy way heavy tonearm effective mass can’t helps about.

The " problems " issue with that dynamic mass is not for 100-200 play hours and as a fact almost any cartridge can runs in any tonearm including that Kuzma and will sounds good because today and several cartridges in the past can’t sound bad.

Why sapphire/ruby 70grs. instead a stiffer material and way better like boron? is out of my mind and Kuzma really does not gives a wide explanation. Boron is ideal material for a tonearm as is in top cartridges like your Lambda SL.

R.

@mijostyn : Sapphire? only ignorantas or extremely low knowledge " audiophiles " can go for it and the ones that already own are extremely happy with.

No, it's not yet  a perfect tonearm.

R.

Dear @mijostyn  :  " is a stable balance arm the 4Point is a neutral balance arm which is inherently more stable. "

That is what the theory says: so what? . I owned several tonearms with those both characteristics and others and what really makes the differences is the overall design, selection of build materials and quality level excecution to the tonearm design..

In the other side : " has lower friction bearings with no inherent chatter. " well the 4 point is a 4 unipivots and that's why has lower friction but the Glanz is not severly behind it because its friction level is lower than 10mg that still is a good one. In the side " no inherent chatter " not only you but even Kuzma can't ( till today ) show facts that at playback microscopic level where the tonearm is receiving " fenomenal " " forces " transmited by the stylus tip tracking there is NO chatter been unipivot and even that is founded at 4 points.

Yes, maybe the 4 Point is better damped ( Glanz design shows workind in damping too but I never had a Glanz listening session. ) and I don't know for sure and yse it's not a remobavle headshell as the Glanz but you already know that in the audio world and especially in analog always exist trade offs and nothing is perfect.

As you I don't look again to Glanz but only because I don't need it.  12-16 years ago I bought more than 25-30 tonearms and you can be sure that if Glanz were down there I just buy it.

Anyway, @rdk777  seems to me that the higher price tag in that mimal time has no justification at all but that always exist gentlemans that pay for it and Kuzma as any other audio manufacturer just take advantage of it.

Regards and enjoy the MUSIC NOT DISTORTIONS,

R.