^ Also... if he considers an M-Stage, Matrix Electronics also has a separate
DAC to go with the amp (not the crummy DAC that's added onto the M-Stage USB version). That goes for around $300, so if he gets the Matrix M-Stage amp for roughly $300, and the separate Matrix M-Stage DAC (again, not the one that's included in the M-Stage USB), for $300, that would round out his $700 budget quite nicely.