And I have to say it's not bad. It's better than a Velocity 100 by leaps and bounds, but still below a real bonifide tube power amp. First off, like just about everything amp-related that rocktron makes, it's got a marshall flavor to it; it's got that uppermid-thoatyness to it that you'd get out of an EL34 based power amp. The reactance knob does add warmth the higher you turn it up, but it also loosens up the response the higher up you go, and on ten/max I found it way too flubby for the hard rock/ metal I like to play. I found between 2 and 3 O'clock is as high as I can set it before it goes to mush on me. The deffinition is a prescence control, and I find it gets to be on the fizzy side past the 2 O'clock range.

I also found that if you turn the reactance control to 5 (12 O'clock) or less, I could use full amp models minus the cabs (since I'm running it into real cabinets) and get the difference feels/response from each of the amp models and liked what I was hearing. Happy with just the preamp models through it as well.

Turning it up and really pushing the speakers in the cabs it sounds like a decent low-end tube amp, and that's probably in part to pushing the speakers and getting some speaker distortion and the high volume probably confuses ears a bit as well.

In conclusion, I don't think it stands up to my 2:Ninety SimulClass or 2:100, but I'm deffinitely able to get some good tones with it. Considering it's about 1/4 the price of a 2:Ninety, I'd consider it a winner in my book, and a keeper. Great for practicing without cooking all those tubes in my real poweramps, so I can save them for live shows.