To come back to the 320. It's a monster combo. I plug my P into the 360, and chain to input of the b channel. From the 360 pre I go the return of the a channel. I dial in a sick fuzz tone on the 360, adjust to the right volume. Next, i keep the 320 b channel flat and dial in the volume until i get the heavy bass back. That's just incredible with the 408. No fuzz box can match this goodness. Wall breaking low end with very thick fuzz. That's why I had to have it. Also the clean voicing of the 360 pre is quite different than the 270 or 320, tons of bass