Cartridge alignment tool

GeoDisc and related products does not have a Pivot to Spindle Ruler, so i have NO IDEA how do you guys are using such products if you're gonna swap a tonearm ??? Maybe it's good for ONE fixed tonearm on a turntable, but devices like GeoDisc are useless if you have many tonearms. Precision pivot to spindle setting is the first step for any toneam setup. This is the reason why Dr.Feickert is always better. 

The Geo-Disc certainly adjusts for any arm at any P2S distance; it’s a true universal. It does this by requiring a 1st step of aligning the disc via line-of-sight’ing its raised ridge to point directly at the tonearm’s pivot. By that step, the 1-point alignment grid swings into the correct position. Obviously some tonearms have better "center pivot" visual markings than others. And if you do something wacky, like having a way too large P2S distance on a short arm, you’ll run out of head-shell space to adjust the cartridge appropriately. I.e. the exact P2S distance doesn’t matter as long as you adjust and align for it specifically. But generally, Geo-Disc is the quickest reasonably accurate universal I’ve tried. I believe it’s a Loefgren A IEC alignment, which is fine IMO.

It works great for my FR64fx and especially Clearaudio Universal (very clear visual center). Yes, it gels with the same setting on my SMARTractor (its P2S "arm" has some play in it too, btw). I wouldn’t use it on my Phantom, but then I wouldn’t use anything other than the supplied Graham jig (or maybe a MintLP) on that arm, because the actual internal pivot point doesn’t have a good reference against the housing. The jig is really pretty nice; it could just use some minor alignment-visibility enhancements.

I could’ve been happy with just the Geo-Disc (and Graham jig for that arm).

There is a good review in the November 2018 Stereophile by Art Dudley of the Acoustical Systems SmarTractor of 3.5 pages. I concur with "The Smartractor is a breeze to use, and seems exceptionally well made."

@mulveling Sorry, but i don't understand why do we need that GeoDisc for $49 if almost the same protractor comes for free with Analog Test LP for the same price?  

This is Analog Test LP and free protractor inside. There are 3 different method on that protractor, one of them is Linier Offset Technique with just one point for the stylus and a line accross the protractor to point it to the pivot of the arm (same as with GeoDisc). But for the same price ($49) we will get Test LP (to measure tonearm/cartridge resonance) and 2 additional alignment methods on that protractor. 

This is GeoDisc with just one alignment method for $49  

And this is Dr.Feickert which is a much better, made of metal (not plastic) with many more features such as Stevenson, Baerwald, Lofgren methods, and more important - Precision Pivot to Spindle Ruler on it. All these for $185 (without VAT if you're not in UK or EU).  

Dear @last_lemming @bluewolf @folkfreak and friends: All of you were touting this or that protractor, yes always is fun to try some of them but other than that " fun " there is a critical main tonearm subject that all of us are contributing to the tonearm manufacturers fix for ever the problems of alignment with the tonearms they manufacturer.

They are not worried about and this " about " means that they have a main/primary responsability to put on sale a FINISHED product and a tonearm is FINISHED for sale when is on sale along its own ACCURATE AND USER FRIENDLY ALIGNMENT PROTRACTOR WITH NO NEED FOR AN AFTER MARKET ONE  ! ! ! 

But because their serious irresponsability as the reviewers irresponsability and distributors irresponsability we " like " to spend any kind of after market protractors.

Just imagine: do you buy an amplifier that comes with out input connectors or a cartridge with out indication of VTF or load impedance/capacitance?

So, what are we doing with this kind of threads over the internet INSTEAD TO ASK THE TONEARM MANUFACTURER TO SEND YOU THAT ACCURATE/USER FRIENDLY PROTRACTOR AND IF WE DON'T RECEIVE IT THEN RETURN THE TONEARM FOR THE MANUFACTURER SEND US BACK OUR MONEY?  because they are taking our money they exist because we CUSTOMERS but we all " like " to be " masoquist ". I don't know why.

No one analog rig needs more than two kind of tonearm alignment: LÖFGREN A  AND /OR  LÖFGREN B.

When will comes the day in that we CUSTOMERS can take a LITTLE control of the audio market?

Till today: SHAME OF US. We have what we deserve for that " dead " attitude.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.