I've been playing through one of these for over a year. I practice through it outside on the deck regularly with various basses, use it for acoustic jams when I don't want to haul a bass amp. You really don't need a lot of volume to keep up with a couple of acoustic guitars so I'm really not pushing it. I've also used it a couple of times in a pinch for vocals in a basement jam with a full band and it held it's own. I also have a friend who has one and we've linked the two together and run a bass, two guitars and 4 microphones through them all at the same time. No problem whatsoever with them. It's a PA so it will handle bass as long as you don't go crazy. I do generally try to use a compressor pedal with it. Between myself, my buddy and his brother we have 3 of these units, as well as one 100 watt 4 speaker version. They all get tons of use and everyone who hears them thinks they sound amazing.