The AVT150 combo boasts more channels and features than any other Valvestate amplifier before. Its four channels are: Acoustic Simulator, Clean, Overdrive 1 and Overdrive 2. As you may expect, the Clean, Overdrive 1 and Overdrive 2 channels are identical in terms of voicing and features to those found on the AVT100. The AVT150's fourth channel is the Acoustic Simulator Channel and, as its name suggests, it transforms the sound of a standard electric guitar into that of an acoustic. The fact that all four channels are footswitchable means that one guitarist now has the flexibility to use professional quality acoustic and electric sounds in the same song, without having to change guitars or amps! As with the AVT100 onboard DFX are present, but on the AVT150 there are two separate, 16 program DFX Sections - one for the Acoustic / Clean channels and the other for Overdrive 1 and Overdrive 2. To add even further to the amp's flexibility, both DFX Sections are footswitchable on / off. The purpose-built AVT112 extension speaker cabinet will increase the spread of sound and the bass response of the AVT150 even further. Its 100 Watt, 8 Ohm, 12" speaker perfectly complements the combo.