I have a Lull 4-string passive Jazz, which I love. I am looking at a 34" scale Lull MV5 Jazz fiver, which has the "optional" Aguilar OBP3 (or something like that) preamp. Anyone here familiar with that preamp? Thoughts about it? I know you can go passive with this bass if so desired, but obviously since it's got the preamp I'd like to know more about it. Also the knob setup - apparently in passive mode there is no tone control, while in active there is a mid knob and a treble/bass stack knob. Also - it's not two volume knobs, it's got master volume and a blend knob.
Any comments of those familiar with this setup would be appreciated.