Try the links below. The AC30 is a classic. It's a good-sounding amp with few frills, and has been in production since the 60's. The AD60 might better fulfill your demands for versatility because it has a full compliment of digital amp models and a full-featured digital efx section. Both are small, portable, self-contained amps. If you are going to be using it to amplify acoustic guitars, I'd guess the AD60 is the better choice.


http://www.voxamps.co.uk/products/valvetronix/ad60vt.htm

http://www.voxamps.co.uk/products/ac30/ac30hw.htm