Dear Albert: I don't know if you already did it but if not the very first step with the Audiocraft AC4400/3300 is to change its internal wiring for a better today quality performance wire.
About the A-90/Audiocraft combination I think that you can take advantage ( additionaly of Thuchan advise you ask for. ) on the S shaped arm wand where you can mate the A-90 ( or any other cartrridge ) with different weight and different build materials headshells that will help to permit that the A-90 shows its best in your system.
Here you can buy some different headshells:
http://electronics.shop.ebay.com/Cartridges-Needles-/64620/i.html?_trkparms=65%253A10%257C66%253A4%257C39%253A1&rt=nc&_catref=1&_ipg=200&_sc=1&_sop=10&_trksid=p3286.c0.m14.l1514
Btw, if you decide to try the S arm wand then I recommend too to change/use the IKEDA S-50 headshell wires.
Regards and enjoy the music,
Raul.
About the A-90/Audiocraft combination I think that you can take advantage ( additionaly of Thuchan advise you ask for. ) on the S shaped arm wand where you can mate the A-90 ( or any other cartrridge ) with different weight and different build materials headshells that will help to permit that the A-90 shows its best in your system.
Here you can buy some different headshells:
http://electronics.shop.ebay.com/Cartridges-Needles-/64620/i.html?_trkparms=65%253A10%257C66%253A4%257C39%253A1&rt=nc&_catref=1&_ipg=200&_sc=1&_sop=10&_trksid=p3286.c0.m14.l1514
Btw, if you decide to try the S arm wand then I recommend too to change/use the IKEDA S-50 headshell wires.
Regards and enjoy the music,
Raul.