I reviewed the Peavey Vypyr 15 amp in May 2011 and I was really impressed, the amp models are great and there are lots of onboard effects. Peavey have now created a Nano Vypyr which can run on either AC or batteries so if you like to busk or play intimate venues then this could be very useful indeed. Check out the video below which runs through some of the onboard effects.

http://www.peavey.com/