Matthieu Brucher has released version 1.0.0 of ATKBassPreamp, a free and Open Source stereo delay plug-in, for 64-bit Mac OS X (10.11 minimum) and Windows (32 and 64-bit) in VST2, VST3 and AU plug-in formats.
ATKBassPreamp is a bass preamp plugin, modeling the inverter input stage of a Fender Bassman followed by its tone stack.
The plugin is built with Audio TooKit and JUCE.