Fundamental Bass: Frequency-Split Bass Processor Plugin by W. A. Production Free Download

The plugin divides the signal into a low and a high module, each with its own on/off switch, gain slider and mix ratio dial. Splitting the signal lets the low end be compressed smoothly while the mids and highs keep their dynamics.

The low module offers two compression approaches. The Balance dial sets a compression level with up to -60dB of attenuation, with make-up gain applied automatically. The Flatten dial is a more aggressive compressor, intended for bouncy bass lines or acoustic material with a wide dynamic range.

The high module uses the Balance dial for gentle compression and the Drive dial for grit. At low levels it produces tube-style saturation, and pushed harder it moves into full distortion.

Independent stereo imaging sliders for the low and high modules let you collapse the low end to mono while keeping the top end wide. The developer suggests setting the low module to mono and the high module to stereo.

The high and low pass filter handles are dragged on the display to set frequency limits, useful for separating bass from the kick or removing high frequencies that clash with other instruments.

A live frequency display shows the processed signal in real time, and separate green and yellow meters track the low and high modules. The interface is resizable.