I have had 45, 2A3, PX-25, 300B, 211, 845, and 805 SET amps.
As others have noted, with your speakers, your options are completely open - and IMO the 45 cannot be beat all-around. Either the Yamamoto or the Fi (the X is good but not as good as his stereo or monos; the X is the budget version).
The 45 tube will amaze you with its rock-solid bass, perfectly neutral tonality, amazing sound-staging, and complete freedom from any weakness at all, really.
As others have noted, with your speakers, your options are completely open - and IMO the 45 cannot be beat all-around. Either the Yamamoto or the Fi (the X is good but not as good as his stereo or monos; the X is the budget version).
The 45 tube will amaze you with its rock-solid bass, perfectly neutral tonality, amazing sound-staging, and complete freedom from any weakness at all, really.