Recently purchased an ibanez sr400fl. It's a great bass and is sounding better as I learn to play it better. Recently put on TI flats and I really am lovin' this bass. My only issue is that the stock pu's kinda suck.
It's active electronics w/ mas. vol, blend, (smaller knobs) bass, mids, treb., and it's a P/J configuration. I usually have the blend to the p-pickups cuz the j pickup just sounds horrible. Also, I'm used to simple passive electronics (w/ the exception of my t-40

)... not feelin' that whole blend thing.
I would like a nice low end, but I don't want scooped mids, and would like my high's to be heard, but not overwhelming. I would love for this to be good for tapping or harmonics, but mainly for just layin' down the main groove. I guess I'm just saying I wish to be heard evenly throughout the spectrum (although I wouldn't mind a phat low-end).
I've done a search w/o finding much info regarding pu's for a fretless p/j config. Also I've listened through a lot of the PU's and read the reviews on most of the ones stickied. Just lookin' for some further info and reviews as regards since this is a fretless bass.
Any recommendations as to what PU's I could put in this? Also, what pre-amp would be a good swap-in? I know a tad about the market and differences in pickups, but not much at all about the pre-amps.