i recommend the Audio Experience plus... you can buy one used at $200. It can take mm and mid mc. R core power supply, 6x4 rectifier and single 12ax7 input & dual 12ax7 output. Best bang for the buck!
Phono preamp question
I'm slowly trying to upgrade my vinyl system to something that could be considered moderately decent, not necessarily high end. I have an older full feature preamp and am thinking in getting a separate phono preamp. I'm assuming the phono preamp would need to be connected to one of the line inputs. Would my preamp be the weak link if I get a good phono preamp to use with my existing preamp? Can a phono preamp be connected directly to the amplifier? FWIW, the preamp is an Adcom GTP-750. Thanks.