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Killing sibilance distortion - VPI & Jubilee

Hello,

Along with what others have posted in the recent past, I also have a long running case of nasty distortion on sibilants with my vinyl playback. It is worse in the inner grooves.

To build on some other recent threads about this topic, I ordered a MFSL that is supposed to be a good test for mistracking. I have made a recording clip of my playback playing some of the last track on Side 2.

I have the recording on this link:

Playback Recording

If you take a look at that, we can all be on the same page with what exactly is going on.

The setup is a VPI Scoutmaster table, JMW9 sig arm, Ortofon Jubilee cartridge. The table is leveled on a Salamander Archetype rack. VTA is set with the arm parallel. VTF is set to 2.4g. Alignment is setup with the MINT arc protractor, 10x magnification. The VPI mechanical Anti-Skate is being used, with the lighter rubber washers. Azimuth is level by means of the "VPI straw trick" (a straw in a groove on the headshell).

Is there anyone that can point me in the right direction to fix that sibilance distortion you're hearing on the recording?

I've tried quite a few things, including different cartridges, and VTF, VTA and antiskate settings, but the sibilance is always there.

Here are some photos of my setup:

Cartridge Closeup

Aligning with the MINT

Thanks for reading
by Goatwuss
goatwuss
mmakshak
589 posts
 
Just off the top of my head, and listening on the speakers on my computer monitor(what? You mean these aren't state of the art?), and not being familiar with the recording, I'de say that your VTA is too high(i.e., your tonearm is too high). If that is the case, remember that all the parameters are related, so you might need to adjust VTF, etc. I would suggest, on all the parameters, that you try very tiny adjustments(assuming you are close to the correct setting)until you hear what the adjustment does. Once you find what the adjustment of one parameter does, you will be less likely to use that adjustment for other things. An example would be to use anti-skate for a channel balance problem.
mmakshak
589 posts
 
As far as a general rule for anti-skate(for gimbaled arms-so it may not apply to uni-pivots)is that if the record sounds better at the end than the beginning, you have too much anti-skate(Your problem is the opposite, i.e., you need more anti-skate).
mmakshak
589 posts
 
My first response(VTA) was after listening to the first sample. The second sample was very good, so it looks like you are getting good cartridge alignment from the Internet. I would double check history of Ortofon cartridges, as far as VTA(arm heighth). The second sample didn't have obvious VTA problems. I thought Dcstep had a good argument about the cd having sibilance. How can you be sure something wasn't done to the cd to create less sibilance. Do other albums still mess up in the inner grooves? I would caution against using cartridge alignment factors to eliminate things like sibilance. You should get close to the correct parameters, then pick one aspect and slightly change it, until you find out(by ear)what that alignment does. Then use that alignment factor only for that.
dougdeacon
3,338 posts
 
Mmakshak,

I agree with your last two sentences. Unfortunately, your other points have been already addressed by Goatwuss.

Goatwuss,
I'd be astonished if any Rega TT played these difficult tracks with real clarity. A P1 certainly won't, so that trip was a waste of time. I expect you know that. :-(

Sadly, there are few dealers left willing to support a commitment to high end analog reproduction. There's too little market for it. People want convenience in their music, not quality. If I listened to singers who can't hit a note (like AK for example) I'd opt for convenience too. There's something to be said for the ability to change tracks quickly! ;-)

The more causes you eliminate, the more likely it becomes that TT speed instability is contributing to the problem. A cartridge change may help. So might a tonearm or phono stage change. But you're becoming so sensitized that I doubt you'll lick this to a degree you'll find satisfactory without improvements in that critical area.
goatwuss OP
877 posts
 
Hi Doug,

Yeah. I called ahead of time and explained my situation, and I kind of assumed that he would have a better table hooked up to try this out. I guess I should have clarified that up front. Either way though, we can now cross a P1/cheap ortofon cart off the list. :-)

"I'd be astonished if any Rega TT played these difficult tracks with real clarity."

Can any P5/P7/P9 owners prove Doug wrong?

"The more causes you eliminate, the more likely it becomes that TT speed instability is contributing to the problem."

I guess the way to test this out would be to pickup an SDS. I have no doubt that you are on to something, but at this point I'm a bit hesitant to put more money into the VPI before confirming that the JMW arm can step up to the plate.
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