I mostly just do fly ins for gigs, and so I am at the mercy of whatever they give me for a bass amp. My backline rider always says an SVT classic and an 810, since they are most readily available, but not always what I get. So I was looking into a few Microamps that I could just take with me everywhere..... not sure which would work for what I'm looking for. Then it hit me....what if I go the preamp route, ala a sansamp, SVT, or a Darkglass....then all I have to rely on, hopefully, is just using the power from the amp and I'll always have MY sound everywhere I go....Right?? Hope this is sound thinking. Any thoughts on Pre amps?? I know... not much about them, and there's so many different kinds.