I just got a Tech21 sans amp TRI- A.C. It models three styles, tweed, British, and Cali. These styles are roughly based on Fender, Marshall, and Mesa Boogie. you can save three set-ups and get to them via the switches. Drive, level, bass, mid and treble controls allow for A LOT of flexibility. Anyone who has tried the digital and feels that it comes up sorely lacking should check this thing out. There are some sound samples on the Tech21 site, http://www.tech21nyc.com Just a FYI.