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This page was last updated: March 12, 2026
Green Bass Preamp Pedal
By popular demand, here's another one of my favorite pedals that I've decided to offer for purchase, a Green/Matamp amplifier emulator. This one is fairly similar to my Orange Bass  preamp with the biggest difference being it having the drive/gain stage before the eq tone stack, instead of in front of it, and much more gain and low end. This pedal uses four Jfet transistors to emulate tubes. The prototype was built on veroboard, but I designed this one on an etched PCB. It also has all top jacks and a relayed true bypass in a Hammond 1590B2 enclosure I'm only going to build a couple one of this verison so get one while you can. This is a very amp-like, and dynamic pedal that isn't offered anywhere else. The pictures of the pedal are the one the you will receive.
$299 
including shipping in the contUSA
johnk_10 · Green-Preamp
Here's a quick sound clip of it:
Click on pics for a larger size
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