Hi all. I've tried a few amps, all with mixed success. I've settled on one of these and it is pretty fantastic actually. http://www.philjonespuresound.com/products/?id=8
This particular model is just enough for smaller acoustic / jazz type gigs Have a listen to how it 'puts out' without PA: http://youtu.be/0u_susewERg
Recommend auditioning one if you can. I love mine!