The importance of VTA, SRA and Azimuth - pics

[Balle Clorin]

This does the intermodulasjons distortion calculation for you.
I don not find the Ultimate test record VtA track useful … it is in stereo=45 degree modulation while VTA check must be vertical modulated ( mono out of phase)

'Script for intermodulation distortion testing of vinyl playback, setting VTA ,Zenith etc by test record'
https://www.audiosciencereview.com/...-setting-vta-zenith-etc-by-test-record.66496/

 

[Calle_jr]

I don not find the Ultimate test record VtA track useful … it is in stereo=45 degree modulation while VTA check must be vertical modulated ( mono out of phase)

I agree.
Track A09 (lateral right?) doesn’t tell much about VTA. Track B04 is more appropriate.
I recommend track A05 for zenith to minimize phase difference.

Tricky thing with distorsion measurement is to get a reference, because it’s both frequency and level dependant. But minimizing is always possible of course.

Script for intermodulation distortion testing of vinyl playback, setting VTA ,Zenith etc by test record'
https://www.audiosciencereview.com/...-setting-vta-zenith-etc-by-test-record.66496/

Thanks, will have a look.