Despite a brisk business in preamps and headphone amps, I have nly sold 2 sets of Stealths--one set to NYC and the other to a customer in Edmonton--both assembled units. Although both customers were very pleased with the results (they also purchased MAD preamps), there are, as noted, no formal reviews published. I use a pair in my bi-amped system above 500 Hz. It is hard to promote an amplifier these days which doesn't follow the current trends. The Stealth is low power but push-pull (beam power tetrodes in non-ultralinear class A), has global negative feedback, and uses unfamiliar tubes (but in a classic Mullard-type circuit). If it were SET, with zero feedback, using popular triodes . . . . However, the MAD policy for assembled components is a 10 day trial with refund of purchase price less shipping. So you can give them a trial/review with not much risk (I haven't had any returns of any component based on this offer by the way).
Cheers,
Lloyd
