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Help with vinyl frustration?

I guess it is my turn for some frustration with set up. I've read posts about it, but haven't encountered it until now.
I bought a new ScoutMaster about 4-5 months ago. I installed a brand new Dynavector 20XL which is supposedly a good match. However I have never sensed the magic that I believe this TT is capable of providing. I have checked and rechecked all calibrations. I have been up and down the scale of VTF/VTA. The problem persists.
The problem is that on certain songs on certain albums the vocals and upper mids/mid bass have a slight distortion. This might happen on one song and the next song sounds fine. This began just about the time of break in for the cartridge, maybe 50-75 hrs. As I said, I have checked and rechecked. I can find nothing wrong. I get the feeling that it is a very minor thing. Then sometimes I wonder if it is the cart itself?
I only notice this on classic rock albums which is what I play the most. I haven't heard this on classical albums. Which causes me to ask, Am I seeing to deeply into a poorly recorded record? But if so, why only certain songs on the album? And always the same place; vocals? This doesn't seem like an acceptable answer. Certainly if it is I guess I shouldn't have sold my MMF-7. However the SM kills the 7 on classical.

Anyone with any suggestions?
128x128artemus_5

Showing 1 response by cmo

cmo
471 posts
 
It sounds like your cart is not aligned properly to me. WHat are you using for a your alignment tool?

Try to isolate the distotion:
Is the distotion comming from both channels? What do you hear when you play something very simple (like solo voice, or violin)?............ is it still present?

Does it only happen on musical peaks?
If so, you might be overloading some part of your gain stage.......... Can you adjust these parameters? What happens if you bypass your step-up?

Does the distortion happen in certain parts of the record (i.e. close to the end of a side)? ...... Could be too much Anti-skate. Try untwisting the lead-out wire in your JMW.

Hope some of this helps

Chris
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