Hello everyone. This is my first post here. I have already successfully built a one channel tube amp with good results. Now I wanted to try a 2 channel (1 clean 1 dirty) SS guitar amp with a footswitch probably around 50 watts. I think I will use the lm3886 power amp from chipamp.com but what about the preamp? All i've come across is 1 channel fairly simple tonestacked preamps. Any recomendations? Thank for your help in advance.