I am going live in a couple of months, and I´ve been trying to get a hold of a rack tube poweramp instead of my trusty old 5150 which is to heavy to carry around. I play mid/high gain metal, but with the balls of a cranked metal tube amp. Now I have put my old trusty 5150 for sale and I´m now looking for a rack power amp to replace it. For most of our live jobs, I hope to go DI to the PA, but just to be sure, I want to be able to deliver the tube sound from stage, and my monitoring as well. My question is: My profile comes from a tube amp, and it has the low end balls..is it necessary to get a tube poweramp, or is a transistor good enough to amplify the "sound" of the profile?