Heard this wee beastie tonight.
I dont feel qualified to make comparitive comments to the MAC, as although I've heard both at SM's, I havent had the opportunity to try them at home and really get the feel for the differences between the two amps.
My impression was of high-powered solid state definition in the bass, combined with the natural mid-range of a valve amp. In short it sounded powerful, clean, and generous in the mid band without having bloom.
I liked the feedback switch, which makes it a bit like having 3 amplifiers - choosing the amount of feedback on the fly is great for tailoring the amp to the speakers, or even the recording.
The looks arent that bad to be honest, a little like an early audio research amp. It doesnt scream 'Im a five grand amp' - it rather reminds me (looks wise) of an audio innovations amp. It has the same chicken grill style top casing. The front plate is a nice solid lump, and the carrying handles are groovy. The perspex window is a nice way to see the valves without exposing them to inquisitive fingers.
Im not in the market for an amplifier in the 3-4k price range, but if I was this would be on the short list on the basis of what I've heard today.
Very very nice. I would certainly love to hear it at home one day.
Cheers
Chris