Lyra Kleos: tracking force/VTA/azimuth questions


I just bought a Lyra Kleos and I'm mounting it on a VPI JMW 12.7 (HRX turntable). I've done a bit of research, including Jonathan Carr's many posts here), so I know VTF is critical. I've done a trial set up to Lyra specs, and it doesn't sound right - piano in particular is distorted as if the cartridge is approaching break-up. I suspect the way I've set VTF. VPI recommends measuring VTF at the level of the record, which is impossible with the electronic scale I currently use - I simply put it on the platter and took readings, after first calibrating the scale, of course, and left it at 1.75 g. VPI says that simply measuring tracking force that way will under-represent actual VTF at the level of the record by a substantial amount because of the height of the gauge over the platter. Could that be the source of the problem I'm hearing? With other carts, I've done a couple of tests that seem to verify VPI's advice, so I plan to carefully measure the plinth to platter-top height, remove the platter, and build a temporary platform lower by exactly the thickness of the scale's pan. I'll put the scale on that, and then set VTF to Lyra's specs. This will result in VTF at the level of the record measuring correctly, when I put the scale on the mock-up platter, but NOT when I just slap the scale on the platter - it will measure higher. So my question is: does anyone see any potential problems flowing from my use of this process? I plan first to set VTA slightly tail high to approximate the magic 92 degrees SRA that seems to be the consensus of opinion these days.

Also, I'd like a bit of advice on using a fozgometer to measure azimuth. In my trial set up, I've never been able to get exactly the same readings left vs. right channel with the Foz; the best is a two-division difference, right higher in level than the left. I also get a one division reading, rather than zero, on the channel balance test, with both channel lights very faintly lit. Could this be a function of insufficient tracking force, or is there something else at play?

Thanks to any and all who might feel the spirit to respond (hopefully including you, Mr. Carr).
zachteich
One question about the cleaning fluid from Lyra. How much often is recomendable? Is necessary to switch off the phono preamp?

I have had this cartridge from 2 years ago amd I think is time to clean a little bit...
Bruce...it's not laziness m8. Music should be about listening and not turning the process into a domestic chore. All is not lost. You could take the "lazy route", as I did, and either buy from a supplier who automatically cleans all his pre-owned stock with a Keith Monks (new sleeves included in the price) or arrange for such a dealer to do them "in batch" for you. That way the regime reduces to the odd stylus wipe when required.

I was a Linn user for 25 years and their original philosophy was "Don't clean records, let the stylus do it for you", so rightly or wrongly I followed the advice for decades. Most of those (120g) 40 yr old LPs are, today, still super-quiet and sound extraordinarily good, so outwardly, little to no harm seems to have been done. (Perhaps different stylus profiles play different micro-contact areas of the groove) - rather like buying 2nd hand LPs, lightly scuffed, that had probably been "thrashed" and instead finding it to be a super-quiet breathtaking example of the pressing. :)
This type of experience is in stark contrast to a recent classical demo at a dealers in which they used brand new 180/200g vinyl, cleaned on the VPI 16.5 - or the next model up - to within an inch of its life (4 times per LP!) and they were unlistenable!!!! Massive clicks every few seconds!! The offending records were replaced with new copies and again meticulously cleaned with exactly the same result(!)
It's an experience I'd like to forget but will stay with me forever. (All the while I was thinking I could be listening to some of my cheap, noise-free second hand pressings :(
No reflection on the dealers - they're good guys and no fools. Sometimes I feel this 200g stuff is overkill. I'm no chemist but surely more volume means more MRA???? It can only emerge from 2 surfaces.
This doesn't mean I don't buy new vinyl...but the thought of finding pressings like the ones above scares me. ;)
Thanks Moonglum ... I feel somewhat vindicated. Having said that, it is my practice to wipe every record before play with a carbon fiber brush which does a nice job of picking up loose dust. I also use a gentle carbon fiber stylus brush to lift dust off the stylus before each play. On occassion, I am impressed when the stylus brush picks up a little puff of dust that I can see.

Jonathan Carr's suggestion about picking up Lyra stylus cleaning fluid is certainly a "can do" because it's not an OCD-PITA to use. If record cleaning wasn't such a PITA, I might be inclined to jump on it. My thought is to keep an eye out for a reasonably priced ultrasonic gizmo that will also dry the record. At the present time, I am simply not inclined to spend thousands of dollars on a RCM.
*********02-28-14: Pojuojuo
One question about the cleaning fluid from Lyra. How much often is recomendable? Is necessary to switch off the phono preamp?

I have had this cartridge from 2 years ago amd I think is time to clean a little bit...***********

I have used the Lyra SPT to clean my styli for several years with fantastic results. According to JCarr, it is a detergent/water solution, so no alcohol or other solvents that could dissolve the adhesive attaching the stylus tip to the cantilever.

The included brush is the best I have seen to apply the fluid to the stylus without accidentally slopping it onto the cantilever. You want to avoid getting this or any fluid on the cantilever shaft as the fluid can migrate up into the cartridge body through "capillary action".

Depending on how much gunk has built up on your stylus, repeated brushings with SPT may be needed to get it completely "ungunked". I would recommend removing the cartridge to do such a thorough cleaning. BE CAREFUL!

Re: frequency of use, I use the SPT about every 20 hours or so of play time, giving the stylus a gentle dip in a VP DustBuster before playing each side.

http://www.tnt-audio.com/accessories/vp_dustbuster_e.html

I once tried using the SPT before each side (giving it over 10 seconds to dry prior to play per the instructions) and found that it caused an excessive amount of goo-type buildup on the stylus (all LPs were previously cleaned with the Walker Audio Prelude fluids on a VPI 16.5 RCM), so I opted to use the VP DustBuster between sides and just a periodic thorough brushing with the SPT.

*******************03-01-14: Moonglum
This type of experience is in stark contrast to a recent classical demo at a dealers in which they used brand new 180/200g vinyl, cleaned on the VPI 16.5 - or the next model up - to within an inch of its life (4 times per LP!) and they were unlistenable!!!! Massive clicks every few seconds!! The offending records were replaced with new copies and again meticulously cleaned with exactly the same result(!) ***********

It is likely that the clicks you heard after cleaning were caused by static buildup during the cleaning process. I have found this to be an issue myself, but a zap of each side with a Zerostat after cleaning is an effective solution to removing the static buildup from the cleaning process.

As for letting the stylus clean the dirty grooves, it will certainly do that. However, you will hear this cleaning action while listening (bummer) and this practice is bound to significantly increase the rate of stylus wear IMO (huge bummer).

Certainly you are free to do as you please. Your records and your styli after all. So, please, no flames!:^)

Dave
Dave..good point about the static buildup - I'll pass that on to them but I'm sure they thought of it. I'm a long time Zerostat user myself (currently on No.5).
It's one procedure I don't skip on when handling discs. The regime of keeping LPs static free seems to have worked well in preserving records during those "non-cleaning" years. ;)
As the old saying goes, "If it ain't broke (i.e. you can't see or hear any contamination problem after 200 plays) why fix it?"
I know that the accounts of my early life are likely to horrify the Purist but knowledge wasn't as advanced then as it is now. For me it's now a grand experiment to test those old record's uncleaned longevity. :)
Just to add insult to injury they were always played without the lid on ;)

When it comes to saying how essential cleaning is, hindsight is the perfect tool. :)
Cheers.