you guys are funny.. the threadstarter didnt replied and you are talking about tubemodification.. THREAD-napper
you know you will burn in hell.. the 11th commandment on GS.com
I go with a cheapo preamp like ENGL stuff for metall
I go with a cheapo H&K tubeman as pre for rock
I go with a cheapo metalzone for liveplaying metall
driven by the one and only Reussenzehn guitarslave (the old one with one red knob)
but you need a box.. so I think we are talking about 250 for the pre and 350 for the poweramp.. but then you have no box..
hm.. have to be full valve if you are playing some heavier/punkier/louder stuff.. 50wats + (maybe have a look at your favourite guitarstore??)