by Eastcoasteddie » Fri Sep 08, 2017 2:49 pm
Sorry I didn't see this earlier...but I actually use this preamp in two of my Jazz basses.
I don't know if you got it yet, but it is a very nice, Low-output preamp. What I mean by low-output is that there is absolutely no volume or gain increase when it is engaged. It also does not color your tone when set flat. Switching from passive to active has exactly the same tone and volume. It isn't too powerful, but does what it is supposed to do.
If you set the bass and treble to 100%, it has a nice high-gain sound, but not annoyingly so.
I keep the treble dip-switch at 3.5k for passive pickups.
I one of my basses, I also installed a passive tone control in conjunction with the preamp; the other just uses the preamp.
I would definitely recommend it if all you're looking to add a just a little more A$$ to the bass for the top and bottom ends. Remember, it's just one little tiny circuit board, so it is t as powerful as most preamps on the market.