Dumb VTA Question

Dinster, another way to change SRA is by placing a shim between the cartridge and headshell. Placing the shim behind the cartridge screws will have the same effect as lowering the back of the arm. Of course if you have to lower the back of the cartridge so much that it drags on the record then there is something very wrong.

Using a shim is not an ideal solution but it will at least let you hear if achieving 92 degrees with that cart is a good thing or not.

I find it hard to believe your calculations for overhang change are accurate. They don't jive with my experiments. Could your decimal placement be off?

I use a Mint LP arc-type protractor and looked at the alignment with slightly different SRA angles. The stylus tip basically shifted from the center of the inscribed arc line to the outer or inner edge of that line, and it is a very thin line. I can not really hear a difference in that small a change to overhang.

Peter, that sounds about right with small changes in SRA. With a 1 degree change in SRA the difference will be large enough to worry about.

Folks, I make this post with a smile and a frown. Based on the good advice from Jonathan Carr and a few others, I've made arrangements to send my Kleos back to Lyra for a check up. The smile is that I am taking the advice of people who know what they're talking about. This way I'll know that my Kleos is in tip-top working order when it comes back in 6 to 8 weeks.

And that's why I am sad. :( I won't be able to use my Kleos for 6 to 8 weeks.

IMHO, this is one super-duper cartridge. I still have my S-S VPI Zephyr, but the Kleos is in another league.

What else can I say? :( I suppose, if this is the worst thing that ever happens to me, thank G-d.

Bruce

I am confused which SRA angle I should actually. In the original article and subsequent articles measuring SRA with a microscope by Michael Fremer the angle is measured between the horizontal record and and line which runs theough the middle of the stylus. On the other hand, in a recent article in TAS on tt setup by Andre Jennings and other articles/posts in the internet the SRA is measured as the angle between the record surface and the backside of the cartridge. Depending on the cartridge I would estimate thag the difference between the two ways of measuring are approx. 7-10 degrees. Am I misunderstanding something or is the correct angle to measure depending on the type of cartridge (in my case Dyna 17D3)?