Well, after years of playing around with DIs, class D amps, and everything else, I saw a post on here where someone said every bassist should own an SVT at least once in their life. Realizing that every pedal and amp I've ever owned is always made to try to cop a "SVT-style tone", I just decided to go for it. Found an SVT on craigslist in rough condition. Replaced the tubes, had a shop replace some of the other stuff that was causing only half of it to properly bias - and... oh my god. I know I'm being super original here, but the setup I have is a P-Bass into an Ampeg SVT, going into a Bergantino NV610. There it is. The tone I've been hearing in my head but never coming close to being able to recreate. Enormous - but perfectly slotted into the mix. Great midrange, while still shaking the house - but not in a boomy way. Just a powerful, thick way. I'm glad to say - the GAS has stopped for now!