The first thing I did after I received her. Plugged her in to hear her voice. Which I wasn’t impressed with her voice at all. Then noticed that the neck wasn’t even finished. While leaving one volume & one tone for almost a year.
I took her completely apart. Finished the neck with Ebony stain and gloss polyurethane. Then started with the electronics.
I replaced the pickup with a set of alnico 5 pickup from Amazon. Then replaced the pots. With 250K pots, and a 1000uF capacitor. I also swapped the bridge from Chrome to black. I added a wooden thumb rest/tug bar. I also replaced the tuners and used black bushings.
A few months back I bought from Temu. A prewíred 2 band preamp with a blend, and a master volume for my jazz bass.
A few weeks ago I decided to install it on my beautiful fretless. So I took her apart again.
I put her original ceramic pickup back in. Then I installed the preamp. At first I wired the pickup with the 9 volt battery. Which drained one of two 9 volt batteries.
Plugged her back in, and she don’t have any sound. So I swapped out batteries again no sound. I got to thinking about what’s going on with her. When it finally dawned on me. That I have a passive not active pickup.
So I swapped the pickup wires to the blend pot. Which had me cut the two coils and get two single coil pickups instead of just one split coil humbucker.
Plugged her a few hours ago. She sounds great, but she doesn’t have much volume. I have my amps volume maxed out. But, she is still really quiet.
What could be the reason why she is really quiet? I would love and appreciate the knowledgeable help from y’all folks here.

