Mccormack DNA125 or Belles 150A Hot Rod

You're just going to have to take a chance if you can't audition. Speaker/amp synergy is difficult to forecast. I read all the great buzz about the Belles Hot Rod, took the bait and bought one. Turned out to be an unreliable, mediocre sounding amp. For Me. Others extol it as fabulous sounding, reliable, and a great bargain. I'm sure that's true for them. If the impedance of your Infinty speakers are at least 8 ohms, that's good vis a vis the Belles. I & others found it not at its' best operating into 4 ohm loads. I'd suggest buying used and then you can sell it at a minimal loss if it doesn't work out.

Both are excellent. The Belles is something special. That's the one I would choose.

-Wendell

McCormack is a great amp and offers an upgrade path via mods by Steve himself. I have not heard the Belles, though I do use his 21A pre w/Auricap upgrade. Excellent pre.

Good Luck,