Hello all! Right now I play a Farida Jazz Bass through a Ampeg SVT-200T, and as I love the tone I get from the SVT, it can sound a bit "sterile" when I OD it with an Ampeg SB-12 in stompbox format. I tried it with my all tube guitar head (into the bass speakers) and this sounds great (just like I want to have). So I like the sound of a tube bass amp, but the costs of tube replacement and so (as I have with my guitar amp) does not appeal me..... So I was thinking about adding a preamp to my SVT; as I build stuff myself I thought about building my own preamp to add..... Any suggestions? Would this sound (the strength of a tube preamp with the power of a SS poweramp)?? And also, any suggestions wich bass amp's preamp I should clone??