Just wanted to drop a quick review:
Unfortunately my stock machines are in need of service, almost all my 8 bits are upgraded. Closest thing I hyad is an 800 xl w/ just a rambo, no other mods. Have to say, I have almost every kind of stereo upgrade from lotharek to the original pokey gumby and other more rare ones. The sound coming from the Sharma is the RICHEST I have ever heard come fron an 8 bit for Mono stereo, Plain stereo and Covox. Blown away. IMHO. As far as the memory upgrade, I think that the Rambo interfered w/ the 512 as I was unable to run bigger than 256K demos. . Will have to wait till my stock machines are operational.