Which pickups do you have? To me, the FD1 bridge in my AB1 is the best sounding bridge p'up I've ever heard. It has serious growl. However, it does benefit from a little bass boost to keep it at the same level with the same amp settings. I installed the Aggie on-board pre, which really helps with that.

I always use both pickups in serie and the BlueCube off. Love the full (read FAT) sound...

Hey Zac. I've got the FD1's. They sure sound "high output" to me. I'm also using my Mesa Boogie Walkabout combo which has one 15" speaker plus a passive radiator on the underside. It produces surprisingly low (at least 25 hz, maybe lower) as well as loud sound from it's 300 watts. A major reason I got it was that it has a tube pre-amp so I can get all the growl I want by turning up the gain. Erwin... I, too, have almost always used both pickups - and switched between parallel and series depending on how fat and round I want the tone to be. What never occurred to me before last night (duh) was to get "the best of both worlds" by soloing the bridge pick-up for maximum pitch definition but also fattening the low end simply but increasing the EQ at around 50-60 hz. My Mesa combo has a very nice parametric EQ. This was revelatory for me! I forgot to mention in my initial post, here, that I also turned off the blueCube. Previously I was keeping it on for the mid scoop. Anyway, I suppose the point of all this is simply what DW-ers have known for quite a while - there really is quite a wide range of cool, usable tones on the AB1. I'm going to keep experimenting!

Valk- Zac was asking about the FD1, becuz they sound quite a bit different than the current FD3 p'ups., and their on his bass. I have an FD1 equipped Ab fretless, and IMHO FD1s are punchy, w/ a tons of middy growl. As noted solo'd in the bridge position-wowzah however many players really dig the FD3, and lets face it Sheldon knows how to put together a bass, so pretty much the skys the limit. Glad you found some killer tones.