 The amp 3 is a multi-channel amplifier where you can get anywhere from a pristine clean to some brutal distortion. So it has up to six different voices, three distinct power tree responses, two different types of reverb, and also has a boost function where you can set either post or pre. On the clean channel you could either get a really pristine clean without any clipping, or a clean channel that has a slight bit of great graphing pedals. And the crunch channel can cover anywhere from blues, classic rock, and classic metal. The drive channel has tons of gain on tap, perfect for modern metal or players who use multi-scale guitars.