The first channel, or "normal" channel is based on the stock amp, nice chimey cleans to a killer smokey blues.  Great feel and dynamics.
The second channel or "bright" channel is the hotrodded channel.  This channel has had the tremolo removed, and another gain stage and full range EQ added in its place.  With a master volume on this channel, it can go from amazing chimey clean to nice crunchy gritty blues, to a killer classic and hard rock tone.   No over the top heavy muddy gain here, but a killer hot plexi level.
For those who wonder if 18 watts is enough to gig with, the answer is YES.  Several customers report that its great to be able to turn an amp up enough at a gig to get that sweet power tube distortion without being yelled at be the soundman, or the club owner.  Easily loud enough to be heard over all but the most heavy handed drummer.
Amps come standard with a custom blend of JJ. TungSol RI and EH tubes.  This amp uses 3 12ax7/ecc83 preamp tubes, 2 el84/6bq5 power tubes and a 6ca4/ez81 rectifier.
Transformers are Heyboer copies of the original Radio Spares trannies.
Sozo Vintage series and Mallory 150 caps, 1% tolerance resistors, all teflon wire and shieled input cable for low noise.