I have had this amp for about 2 and 1/2 yrs. It is clean,quiet, loud and most importantly-dependable. I say this because it took a 4 foot drop off my bass cab in a rack of 75lbs. at a gig. I immediately brought in a backup amp. There was no way it should have survived. It hit so hard that the front plate bent-out on one side and it is thick metal! Needless to say when I got home and fired it up, it did not even sneeze. Yea its supposed to be a studio monitor amp but read the manual and you discover its 2ohm stable and quite versatile. I have used it as a live rig for bass and guitar as well as keyboards and studio usage. When you see the massive heat sinks and build quality you will be a believer. for a one rack space amp you will not find a better built amp. The only other one space that has more power that I know of are the crown K1 and K2 amps that are much more expensive. You can get a more poweful amp for this price but if your looking for portabillity and build quality-look no further.