I've got to be honest - I'd don't think you're going to find anything in that price range that's going to beat the Cambridge 640P, especially with a MM cartridge like the GL2200. This should give you a very nice setup.
To my ears, the PhonoBox II is in the same league as the NAD unit you have. Both are very capable units but the Cambridge is much much better in every regard. I ran the 640P for several years in a secondary system with very good results.
To my ears, the PhonoBox II is in the same league as the NAD unit you have. Both are very capable units but the Cambridge is much much better in every regard. I ran the 640P for several years in a secondary system with very good results.