pre amps

Hey guys. im considering getting a AMT p-2 to run with a marshall jcm 2000 and i have a few questions that i havent seen answered yet about these pedals. Firstly how well does does AMT's blend with the natural tone of the amp. E.g if i were to run the marshall at relatively normal rythmn...

Hi Can somebody please tell me his opinion about re-tubing my Peavey 6505+ 112. This is what I'm thinking about: JJ6L6GC Power Amp, Electro Harmonix 12ax7 Electro Harmonix 12ax7 Electro Harmonix 12ax7 mullard 12ax7 jj12ax7 preamp... Stock tubes are chinese ruby's.all of them...