Another thought . I don't know if you would or ever considered a tubed amp but there is a premier 11a available on this site right now (no association). I had one paired with a pv-10 driving a pair of thiel 3.6's and it sounded wonderful. I will have more guts than your 2250 and be more musical even with the "A" upgrade on your 2250. The 11a also holds its value extremely well.
Chuck
Chuck