I see the additions: It uses a better step up transformer, Cinemag 1254, that provides more gain (about 10dB more) and better sound. The Ares Magnum uses better inner-stage coupling caps. PRP resistors in critical spots Improved internal wiring Improved RCA jacks Does the Magnum still use the same JJ Tubes as the regular Ares? $1995 to $2795 is a pretty big jump. I assume most of that cost is in the Cinemags.