I've got a heftily modified ATK300 which I absolutely love and has been pretty much my only bass for anything loud for the last 15 years or so, but I'm starting to get a bit pissed off with having to push the highs in it's current setup. I'm using a Vfe RUP and having to push the gain on the top end a fair bit, and wanna be running them pretty clean. My current setup has the original preamp out, a Model J split humbucker routed in, and a Bassculture.de humbucker, all in VVTT format (although the tone controls seem to be linked together somehow, it's been working well enough for a while anyway...). The humbucker sounds very dark at the moment, but it's worked well before when I used to just use a trace compressor on it's own and nothing else, and tilted the EQ to be brighter, and the J pickup picked up a bit of slack for it too, so the humbucker had the big lows and a bit of highs sorted, and the J does all the warm mids. Now I'm using this fancy drive pedal, which I absolutely love for being able to drive just the mids and add some super low bottom end without the boomy higher stuff, it's not working out as easily. So I wanna get a preamp to try sort the humbucker out at source, my brother has a Sterling Sub SR4 and the preamp on that is lovely, so seriously considering some sort of rip off of that since 2nd hand Musicman parts don't exist. However it seems like I'm gonna run into a problem where my Jazz pickup is going to get buried, and it's already noticeably quieter anyway. So in essence, I wanna be able to EQ my humbucker, without EQing my Jazz, and keeping the Jazz at a volume where it can compete still. A passive solution would be nice, but I've seen stuff about passive HPFs being a pain, and I'm not sure it'd sort out the problem as well as a proper preamp. Don't mind having 2 preamps, but don't really need the EQ for the Jazz, so perhaps just something to boost the signal would do? The other thing to make things a little more complicated is that the Bassculture humbucker is already very very loud passive, when I run both pickups full my Trace comp input clips at under 9 o'clock if I play hard, so need a preamp that I can mellow out at the end of it. Something I've heard the Musicman style 2 band eqs don't have. Very wordy and complicated there but any easy solutions to sorting out my source sound? When this bass sounds right it's awesome, just having to push ALOT of top end, and cutting anything below the low mids on either pedals or amp just makes it lose all it's power to my ear!