This is my 3rd keyboard amp in this price/watt range. I had a Crate amp that I gave up on 3 years ago. It developed a short in the main volume knob that I had fixed once, but the problems came back. It's still in my garage, worthless. I bought a Behringer Ultratone 45w to replace the Crate amp. This Ultratone amp seemed to have a lot of features, like equalizer, echo control, etc. But the echo control renders it worthless. The equalizer is redundant to the controls on the synthesizer, and need to be fixed at neutral anyway. I get tons of FX feedback. And it hums. Still, it works pretty well. Only, I didn't realize how bad the sound quality was until I put it side-by-side with this Peavey amp. I used the Peavey in conjunction with the Behringer as a PA system for a Halloween haunted forest this week. Between the two of them, we had plenty of sound to spare over a 10 acre forested area. The Peavey was clearly the winner. The volume on the Peavey was noticeably louder and we had to turn the Peavey down considerably to balance to the distortion level of the Behringer. The Peavey doesn't have a bunch of worthless 'features' to get in the way of quality sound and volume. It's solid, heavy, the knobs feel sturdy, and there is like NO distortion, even turned all the way up. I haven't connected it to a live keyboard/synthesizer yet, but as a PA system, it is fantastic for the price. It's a little more pricey than Crate/Behringer options. But way less than the Roland. I heard the Roland amp in my local music store, and it was solid, but its over $100 more than the Peavey. Having done the comparison of (4) competing models, this one is clearly the winner.