Fidelity Research FR64s Headshell dilemma


Dear FR64S users can you help me please. I have an FR64S that i bought without a headshell. I have only just got round to getting it mounted. I did pivot to spindle distance of 231.5 (the alternative distance' I also have an armboard for 230.
I tried a Sony headshell that i had - it was 2mm short of correct alignment. So I bought a new Jelco headshell it was also too short. 
CAn you tell me what headshell does work to allow other cartridges to work. I'm just using a DL103 for alignment first as I fettle the rest of my front end.

thanks
lohanimal

Showing 4 responses by cleeds

auliruegas
@lewm : Sorry, your post is useless, for say the least, when the 99.99% of the pivoted vintage and today tonearms are/were designed with that offset angle and obviously overhang figure.
I’m not sure why you think it’s useless. Although I’ve never heard an underhung arm, many who have praise their sonics. The underhung arm certainly calls into question some of the common assumptions about LP playback, particularly the audibility of tracking error. By extension, that is one reason I’ve never cared for linear tracking arms. All that extra complication - for what? It’s not as though you’re likely to hear tracking error in a properly installed conventional offset overhung arm.
dover
Obviously you cant hear it, but others can.
Obviously?
Perhaps you should read more carefully. I didn’t say I couldn’t hear it.
No pivoted arm can reproduce the soundstage transparency and accuracy of a linear tracker ...
That’s quite a claim! What arms have you used to test that belief? In particular, I’d be interested in which 12-inch arms you’ve tried.
... for example with choral music recorded in a church environment I can clearly hear the full extent of the room, and its aural impact.
I can do that with a pivoted arm.
Best you get rid of your CD player, it’s a linear tracker.
It looks like you’re just looking for an argument.
We’re not talking about CD players here, but turntables.
rauliruegas
Dear @dover @cleeds @lewm : Dover/Cleeds I see that both of you don’t get it:" when the 99.99% of the pivoted vintage and today tonearms are/were designed with that offset angle and obviously overhang figure. "" That’s why is useless till you can convince each single tonearm manufacturer ... that all are wrong and that no one will buy their tonearms till they manufacture the underhung ones.
We don’t need to convince anyone of anything in order to discuss underhung arms here. Nor is this a matter of right or wrong - it’s a question of difference.
I´m not interested to participate in a dialogue on something that is futile because the audio industry will not makes changes about only because 6 audiophiles commented in " scientific " way ...
Then stop participating, Raul and - more importantly - please try to obstruct others from participating.

As an aside, I’ve always used conventional pivoted arms, and have never had an underhung arm or any of the various types of tangential arms. But that doesn’t mean they aren’t worthy of discussion.

dover
It’s not a claim, it is science. Less tracking error means there are less phase errors, less phase errors result in a more accurate reproduction of harmonics and more accurate phase and time, resulting in a more accurate and transparent soundstage.
The science is indisputable, of course. Tracking error is measurable and the geometry is actually pretty simple.
... as long as there is tracking error your soundstage reproduction is compromised for the above mentioned reasons.
Do you realize that your favored Eminent Technology ET2 is also subject to tracking error?
millercarbon
Every pivoted arm as it swings across a record has two points at which it is perfectly tangential.
Underhung arms have also been discussed here. They are tangential at only one point along the arc as the arm swings across the disc. Yet some who have heard them praise their sonics, suggesting achieving fidelity from a pickup arm involves much more than just reduction of tracking error.
... Every record, as its played the sound stage will become more and more transparent and accurate, then less and less, then more and more again. If its such a big important difference then everyone would notice ... Is that the case? Not at all. In fact it seems the only people talking about this at all are promoting linear tracking arms as being so great - at solving this problem no one else cares or even knows about.
That pretty much sums it up.
It would be interesting if @dover ever auditions an underhung arm. I plan to do that when the Covid era ends - just out of curiosity. I’m happy with my conventional pivoted arm.