So I bought a WallyScope...


It's a very nice microscope and the software that comes with it, while I assume off-the-shelf, is excellent.

But here's the thing. At the end of the day, you are still basically eyeballing your VTA setup, and the instructions for the WallyScope have you do two separate observations to reach your conclusion. The first is the angle by which your stylus hangs off the cantilever, and the second is the angle of the cantilever versus the record surface.

I understand why this is done. It's so that you can measure with the record moving to get the dynamic rake angle instead of static, so that's one error that the method corrects for. But at the cost of introducing the compounding observational errors by taking two measurements and then combining them to calculate your angle.

I was very patient with this process. I spent many hours over several days. I even dismounted the scope from its frame because I found a better way to line it up for taking measurements. 

 

And after all of that, I adjusted VTA by listening. Which achieved better sound. This came to me as a revelation, although it shouldn't have.

I don't regret the purchase, but it's a lesson that we can and should trust our ears.

Ag insider logo xs@2xwoofhaven1992

Showing 2 responses by wallytools

@woofhaven1992 , I appreciate your comments though I wish you had reached out to me for support before coming to a conclusion. Perhaps you did, but I don't recall helping someone who didn't feel like they'd arrived at a final setup they were most happy with.

I offer technical support pretty much 7 days a week to all WallyTools owners. The WallyScope is a fantastic tool that can give inaccurate results if the many setup variables are not controlled for. I am not implying that you messed up. I could not possibly know whether there is room for improvement or not until I start to see some of your images - which is what I hope to do for you.

Please feel free to send them to me for any feedback I may be able to share with you.

Lastly, I know from the analysis of hundreds of cartridges in my lab that MOST cartridges need more SRA/VTA correction than you would want the arm to perform for you (though few can). When the arm is too far out of level, vector forces at play around the arm bearing start to change for the worse. This is why I offer in the WallyTools instructions to send out corrective shims when needed. This may apply to you, maybe not but I can say that I am surprised that I don’t get more requests for compensation shims than I do. It really has me concerned that people are not getting the most out of the WallyScope. I also rarely hear about people using USB microscopes for the same effort complain about this but I see the need for more than 3 degrees of SRA/VTA correction with great regularly. I have never had a cartridge analysis client claim to get better sounding results by raising/lowering the tonearm after following my instructions for even very extreme SRA/VTA corrections. Maybe some have, but I’ve not heard about it yet. I would certainly want to hear about it if so.

Lastly - and this is something that I haven’t discussed much outside of my seminars - BOTH stylus rake angle and vertical tracking angle are each important for different reasons and they each have their target ranges that are determined by the MEAN alignment targets used on Neumann and Scully Westrex lathes for cutting rake angle and vertical modulation angle, net of lacquer springback. If I knew what the WallyScope had to say about your SRA and VTA (dynamically measured) then I could help you balance the two goals since it is rare to have both in the ideal ranges.

Our research team have put in several hundred hours of research so far this year. We have been learning so much so fast that I can certainly say there is A LOT we still don’t know about vinyl playback. I’ve been wrong before and I am sure I will be wrong again but I am pretty confident about a few things and one of them is that most cartridges need much more correction for SRA and VTA than the tonearm (or even the cartridge body) will allow.

I hope to hear from you and would enjoy an opportunity to help you get more from your cartridge.

Be well.

@woofhaven1992 , I look forward to helping you. We will explore your SRA and your VTA for ideal alignment. Make sure you've seen the short tutorial videos on use of the WallyScope on my website before you start.

We can also discuss how you CAN use your ears to correct for zenith error! The effect is not subtle.