Dear Perrew/Syntax: As Peterayer with good sensitivity posted I can't disclosure the whole design but I can speak a little on some highlights/goals in the tonearm design.
Why exist too many different tonearms designs out there? which is the target on each one? unipivots, gimbal, pivoted or linear tracking ? same cartridge in different tonearm design sounds/perform different: why?
trying to have answers to these and other tonearm related questions makes Guillermo and me to investigate about and so was interesting/learning and emotive what we found that we decided to intent our self tonearm design with very specific targets.
As Dertonarm posted somewhere the first tonearm design steps ( mainly on tonearm geometry. ) are really easy to have on paper and develop but the right geometry is only a " routine " tonearm design step.
I learn through the years running several different tonearms and several different cartridges that the matching between a tonearm and the cartridge is of critical importance to the cartridge can show us at its best and I'm nt refering only to match the tonearm/cartridge resonance frequency match but a real match between the behavior of the tonearm and the behavior of the cartridge: this relationship is extremely complex for say the least and that's why ( till today ) there is no single tonearm ( any kind ) out there where we can say: this is a Universal tonearm.
What means a UNIVERSAL tonearm design?, well a dream come true tonearm design where any cartridge and I mean any cartridge ( MC/MM ) ALWAYS can show us its best quality performance like in no other vintage/current tonearm designs.
Well, this was/is our main target/goal when more than three years ago we start in our tonearm design.
A very ambitious target that when I think on it again makes me think we were really " crazy " trying to achieve an almost impossible target.
All the tonearms that I own and many more that come borrowed by my audio friends help us to test more than 100 cartridges ( MM/MC. The last two MC were the Air Tight PC-1 Supreme and the Koetsu Coral. ) that in different conditions and in those tests confirm that we achieve our main target: a UNIVERSAL tonearm, yes we did it the tonearm ( still with out name ) makes that any cartridge performs better by a wide margin against any other tonearm.
We almost finish our last prototype and right now I'm testing in deep the " infrastructure " that between other things makes this UNIVERSAL tonearm the most user-friendly tonearm ever: it comes with a unique VTA on the fly and with a unique arm lift mechanism, we cope with all the geometry and desirable mechanism/parameter/factor you can imagine on a tonearm design, yes is a pivoted one, 250mm on effective length, its main build material is a propietary/patent blend material, self mounting, etc, etc.
Yes Syntax this is the newest tonearm where I'm playing and ejoying like in no other time each cartridge that I mount on it.
I have no words ( new words ) to describe its NEUTRAL quality performance, IMHO no one of you can even imagine how a cartridge performs in our tonearm design ( this is a totally new experience that we really can't imagine before we made the very first test!!!!! ): even we are a little on " surprise " about its performance.
Through the design time I have a lot of new experiences for example: if you read in the MM long thread I posted in the thread ( right in the thread ) that the AT-20SS cartridge was a very difficult cartridge to mate with a tonearm and find the right set-up well three weeks ago I mounted for the first time in our tonearm prototype and guess what?: immediately works and performs like ever in a simple way and with out " fighting " with the set-up.
Other example: with cartridges that due to its characteristics put the resonance frequency below 8Hz and over 12Hz the quality performance were just splendid like if that resonance ( out of target ) figure was of no importance at all!!!
We don't know yet the precise date for the tonearm goes to the " light but I think this could be in other two-three months maybe a little longer.
Regards and enjoy the music,
Raul.