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65.28.173.11
Like why not? Why does no one make thes simple plastic gizmos?
I can see a plastic cap, which fitted over the arm 'locks in' the precise correct stylus location. They could even be made for the various
'geometries.. So you could swap them and with hardly any effort change the tracking geometry (like Berwald etc)
So.. what enterprising smarty will start up such an enterprise?I base this on remembering some TT I had which did include such a device...
So why don't more companies offer this? Or some tinker make them up?
Really if it is some issue why not, other than various 'alternate' tracking geometry, what is it?
It sure would make changing carts a Hell of a lot easier...
(or is that it, keep it as mysterious as possible?
Edits: 07/28/12Follow Ups:
Shure V15V did that. The box that contained the cartridge was also an alignment device fitted to hold the cartridge. Simplest setup ever.
And with a Jico, still sounds great :)
Bob
Philips 212 came with a plastic box that matched the cartridge mounting slide. The arm had no VTA adjustment so you shim the cart and position it with the stylus tip in the notch on the box.
I'd wager that the majority of tonearms fixed to turntable plinths......are more than 1mm away from their exact Spindle to Pivot distance.
This will have an effect on the stylus tracking geometry that only an accurate alignment tool will allow you to set.
and it would give us Perfect Sound Forever™Heh, one guy whose rig I aligned yesterday wrote this:
OK - I got done working and have been listening to some favorite LPs.
and a few hours later:Pant-crappingly good.
I have been listening more - I am too busy weeping. No shit.
I like that. I don't care to see his laundry, though.My turntable has vaulted beyond my high-end digital stuff in a way I can't express at the moment. I always liked it better - but it was just sort of warmer and happier.
Now there is no comparison.
Brian Walsh
Central Fest is on Saturday, August 25th, and you're invited!
Edits: 07/28/12
.
Graham Tonearms come with a foolproof cart alignment device.
Hey Tedmc,
I don't concider a 1mm gap between 2 reference lines as foolproof alignment. He should of had a line down the center of this gap for precise alignment. That would have been foolproof!
My Harman st7 with the Rabco arm has such a device although I do not have one. Also my sl-1200 Technics has an alignment tool that you put the headshell in and line the stylus tip with mark on tool. Works well. I though I would test it and broke out my DB protractor and both null points were almost perfect, close enough I left it alone. I bought it from KAB for around 5.00.
Brent
The Technics alignment jig sets up the Technics tonearm for alignment null-points of 58.8-mm and 113.5-mm whereas the DB protractor is designed for null-points of 66.0-mm and 120.9-mm. If you get the same alignment with both then there is definitely something wrong somewhere.
Best regards,
John Elison
I had a TD126 mkIII that came with an alignment jig that slid on to the headshell.
enjoy,
mark
There was a kit that came with the their turntables with counter-weights,scale, and a little plastic jig so the cart would be fitted correctly on the arm.
Also had screws and little riser thingees so the cart would be just the right height.
I'd love it if that were possible, Elizabeth. In fact, I've made a little jig out of small clear-plastic boxes the gets me into the alignment ballpark with my Oracle Paris/Sumiko MMT combination. I also use the Technics jig on my KAB-modded SL-1200.
But it would even be simpler if every arm/table maker followed Bill Firebaugh's philosophy as practiced on the Amadeus and Simplex tables: There's no provision for any type of cartridge adjustment at all. Just a fixed mounting position. (Firebaugh claims to have figured out the optimum mounting position for every cartridge! And who am I to say he's got it wrong?)
-Bob
As one who has spent an entire afternoon trying to help a disabled friend align his new Dynavector Karat in his WT Reference tonearm, I believe I am qualified to say "he got it wrong". For those who don't know, the DV Karat has a VERY short cantilever; thus its bolt hole to stylus tip distance is odd, and its alignment is way off in the WTR tonearm. To compound the problem, not only are the cartridge mounting holes fixed at the distal end, but also it is nigh impossible to mess with the spindle to pivot distance, at the other end. (We tried to rotate the base in order to compensate for the problem at the headshell end.) In the final analysis, my friend and I decided not to care about alignment, once we got it as good as it could get. But the WTR tonearm is also over-damped and, at best, vague with regard to azimuth setting and stability of same. I am not a big fan.
... Supposedly optimised for the Linn Troika. I've tried and heard several dozen cartridges on the arm and it's easy to determine what works and what doesn't. Mount a cartridge, adjust the arm height, check azymuth and done.
Eliminating obsessive dial-in process leaves me more time for listening to tunes.
Can't say for other turntables, but for the Sondek/ARO there are other areas that needs to be dialed in proper which have far more influence in sonic outcome than tweaking alignment of a cartridge. ( so long as there are no gross mismatch in compliance )
If the Aro was "optimised for the Linn Troika" then that's probably OK for all Linn cartridges, which I suspect are all built to the same cartridge-bolt-to-stylus-tip distance.But not every cart is built for this distance ... so these carts are going to be misaligned, without headshell slots. Which is, of course, fine ... if you want to limit your choice of cartridge. :-))
Regards,
Andy
Edits: 07/28/12
hasn't been a good indication of what sounds good to me, tho.
I was originally hang up on it but as I tried many cartridges on the ARO, some, even with the ideal distance, can under perform compare to others. ( a few Dynavector carts come to mind )
ARO isn't that fussy in terms of cartridge choices. Many do more or less *work*. I don't think this is a super duper precision instrument.
My problem right now is to find a suitable replacement for the Miyabi/47 which might not have had the correct geometry, but boy I really miss the voicing of this cartridge!
Nothing like it out there for the money so far. I value an overall cartridge voicing and dynamics more over a geometry now.
AFAIAC, there is no "correct" geometry for a cart. It will have a certain stylus-to-bolt-hole distance, and height from stylus to headshell, and a good arm will allow adjustments for these parameters, to suit that particular cart.
But getting it located so that it aligns to the correct null points for the particular alignment chosen (and the inner groove radius/outer groove radius choices you prefer) is crucial, to make the cartridge sound its best. (As is VTF, VTA and azimuth.)
But each to his/her own. :-))
Regards,
Andy
I never get the inner grove distortion that I've read so much about except when the cartridge is on the way out or the record has groove damage.
Anyways, I am sure you can make a cartridge sounds better through precision alignment but all efforts lost if the voicing of the cartridge doesn't agree with the owner to begin with.
Absolutely! But if you haven't set the cart up correctly, you won't be hearing 100% of the beauty of its "voice"! :-)) EG. the stylus profile that demands exactly the right VTA to sound its best. (Many - most? - other profiles are much more tolerant of the VTA setting.)
Regards,
Andy
Wasn't that P-Mount? :-)
-Wendell
You didn't even need to stick anything on the headshell with a P-Mount. All you did was plug the cartridge in and it was not only aligned correctly but the tracking force was set correctly, too. I guess it must not have worked too well because it didn't seem to last.
Best regards,
John Elison
with a fixed headshell, the geometry can't be known but properly mounted arms with detachable universal headshells can used with an L-shaped jig with the overhang spot marked. one is available from kabusa i believe for use with technics tables and should work with most others. the distance is something like 51 or 52mm base to stylus tip.
fixed headshell arms vary too greatly for any kind of jig.
...regards...tr
With the fixed headshell, for each common TT it would be no bigdeal for some crazed TT maven to make up some specific for that TT devices..
Rega, VPI.. jeez if i HAD any talent i would make one for the Rega P-5 RB700 and sell them
Say a set with each of three alignments.. three plastic gizmos.. work forever, for that TT. $125. or just the common alignmnet one for $75
It is certainly doable.
that's a pie in the sky.
...regards...tr
Is the DB protractor the same as can be down loaded from Vinyl Engine for Technics?
i really don't know the answer to that. HEY john elison!!! got an answer?
...regards...tr
Pinging John...
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