Ok, let's say that from time to time, I want to widen/boost the midrange of my J-bass and bring it closer to a P-bass sound. I've done this in the past by using EMG's and favouring the neck PU with about 70/30 split. But if I've got a passive bass with barts and want to do the same, do I have any on-board options? Basically an active, 1-band mid boost(/cut) that can be bypassed. E.g, would this do the job? http://www.bestbassgear.com/bartolini-preamps-tc3.htm The easiest choice would be to use an EQ-pedal, but I really don't want to add anything to my board, which is pretty much set up for a P-bass PU/tone..