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.
Just like a bass preamp, you can dose the amount of
distortion, bass, medium and high frequencies. The
final stage gives you the option of turning the
volume up or down, as well as balance the dry sound
with the processed sound.