Hello, amplifier ordered as a backup for another of the same power and class D (but 3 times X more expensive) tested on an outdoor stage with 2 speakers (1x12" and 1x15") we played for 4 hours (yes!) and the first band also used it, so 6 hours in total including soundchecks. easy to set up (plug & play) great sound, not too colored (quite versatile, from jazz to rock, slap, etc...) and high power, in the end a very good surprise. So this amp holds up against the more "high-end" competition. I would have liked a fuse but I still give it 5/5.