Ideally you'd want an amp with 100kohm input impedance like a Belles or McCormack. Probably others I can think of right now. By the way, the AI and Belles amp have been a classic combination for years. The inline attenuators appear to be a clever solution though. Best......
Audible Illusions M3B with Aragon amp?
About a month and a half ago I ordered a new M3B (was told I'd have it in 1 1/2 to 2 weeks - still hasn't been shipped!) and I'll be using it with an Aragon 4004 mk ii amp, along with some fairly low efficiency (86db) speakers T+A Criterion 300's. The Aragon is kind of low impedance - 22k - and I'm wondering whether this'll be an ok matchup or if I'll have to start shopping for another amp? Any opinions or experiences?