I recently used a Pass X350.5 with my Maggies, and the sound was great, but it did strain a little at volume, and was not quite on the same level overall with Maggies as the best amps I have used with them: Cary CAD 500 MB's, SandersSound Mono's, Brystons.
I think that next level up on the Pass (X600's) are probably better than any of these, from what I heard on my days with the X350.5's, but I would take any of these over the 350.5's right now.
I think that next level up on the Pass (X600's) are probably better than any of these, from what I heard on my days with the X350.5's, but I would take any of these over the 350.5's right now.