Artists use this
Quite good, though.
I got it in a pack with my acoustic. It actually sounds good, clean, and still gives an acoustic vibe. It's not that powerfull (15W), but still can quite fill a not huge area; mine's been used on a church and the echo gave it more room, of course.
It has a XLR input, but sadly just a volume knob for EQ, but it may help if you're lacking for a PA System for small Band practice session, or maybe for your guitar/bass player comrade for support you vocally in the old punk rock style.