Sadowsky Onboard Bass Preamp

The preamp is decent quality, but it can't even compare to something like a John East preamp. The wires of the preamp and the module are too short so I had some problems fitting it into the bass. The instructions for connecting ground of the pickups and the bridge/cavity aren't mentioned so I ended up soldering them to a blending pot how you usually do. Also my box did not come with instructions or a wiring diagram and I couldn't find anything on the web. Also my input jack din't come with a locking washer and a nut which normally wouldn't be a problem but the input jack is a bit smaller than a regular fender or sire jack so I had to go to the store to find one.

Considering the sound, it really targets the Jazz Bass frequencies. To me at least the 40Hz frequency on the bass and the 4khz on the treble is the perfect combination, but the treble boost is too harsh in my opionion. It's unusable after around 30% boost because the sound becomes harsh for the ears. The good thing is on flat this preamp doesn't change the natural sound of the bass. Having a tone control in passive mode is a great addition too.

Anyway, for the price it's a great buy but I would suggest you get it installed by a professional if you didn't do anything like this before.