Uni-Protractor Set tonearm alignment


Looks like Dertonarm has put his money where his mouth is and designed the ultimate universal alignment tractor.

Early days, It would be great to hear from someone who has used it and compared to Mint, Feikert etc.

Given its high price, it will need to justify its superiority against all others. It does look in another league compared to those other alignemt devices

http://www.audiogon.com/cgi-bin/cls.pl?anlgtnrm&1303145487&/Uni-Protractor-Set-tonearm-ali
downunder
Dear Jazzgene,
let me address your last question first:
the UNI-Protractor works even with an Ikeda or a FR-7f - compared to these two cartridges' ultra low bodies, the Grado Statement is walking on stilts .....

The Jig you mentioned and use allows alignment only for either Stevenson IEC or one of 3 recommendations by it's manufacturer.
These e are suitable only for very modern records cut for audiophile purposes (like 45 rpm short cuts) or reissues.
The Stevenson IEC isn't all that great to start with, but try any of the three manufacturer's recommendations with an old Mercury, Impulse, Columbia, RCA LSC - in fact most any record from the 1960ies or 1970ies - and you will run into high distortion towards the last 1/2" of your records groove, as the derivation from the tangential ideal rises steep with these alignments.
These alignments are mainly suitable for the 9" tonearms of the jig's manufacturer and for records cut following IEC standards only and offering a rather small actually grooved area ending way apart from the inner label.

A rather specialized tool - and specialized for a very certain kind of records mainly, but even among those, there are pressings which will not really suitable to be tracked with such an alignment.
Cheers,
D.
What is the "ULTRA PRECISE P2S-positioning instrument w/new features, matching the UNI-Protractor system" that is referred to at the end of the UNI-Protractor advert?
Dertonarm
My compliments to you for your protractor, it looks to be thought out to the extreme, a mature product, ultra precise & easy to use.
Dear Kostas_1, it is an independent (there is a P2S scale coming with the UNI-Pro) and extremely precise P2S instrument which gives the mounting distance on digital display and with 1/100 mm accuracy.

It works with the special tt-spindle adapters of the UNI-Pro, but is a kind of rather speciality for professional use.

There will be another very nice add-on for the UNI-Protractor available end of march.
Stay tuned.

Cheers,
D.