This is used, older Vox Valvetronix AD30VT guitar combo.
It features 30 watts of power, a single input, two saveable channels and a boat load of amp and effect pre-sets into a single 12" speaker.
here's a link for all the specs. and info:
http://www.voxshowroom.com/uk/amp/ad30.html
works great! sounds awesome!
swing by and check it out!