Forgot about VTA infirmation readed. VTA is not critical in this kind of distortions, bias adjust or azimuth adjust have, at this time, more relevance.
Put the VTF at the maximum value permitted by Lyra and with Hifinews test lp or adjust + Lp try to get the same distortion from both channels. Once you get it you have the bias right.
Fozgometer is a good component to get the azimuth properly but all the Lyras I have seen usually has this value right with a proper VTA. If you start to play with strange VTA parameters lookin for the perfect SRA maybe you will brake your cartridge.
If the problem persist you should contact Jonathan
Put the VTF at the maximum value permitted by Lyra and with Hifinews test lp or adjust + Lp try to get the same distortion from both channels. Once you get it you have the bias right.
Fozgometer is a good component to get the azimuth properly but all the Lyras I have seen usually has this value right with a proper VTA. If you start to play with strange VTA parameters lookin for the perfect SRA maybe you will brake your cartridge.
If the problem persist you should contact Jonathan