Resonant filter

Description

The Subdecay Prometheus is everything you've ever wanted in a filter pedal. It features loads of headroom, reasonable size (measures about 3.7x4.7 inches), highpass, bandpass, and lowpass filtering with adjustable intensity (resonance), forward and reverse envelope following and sample/hold step filtering based on 3 different wave forms.

All that plus it has some 'hidden features' as well:

• The LFO rate can be adjusted to run much faster than the the step rate. This can be used to create very interesting arpeggiation.
• The Depth knob can push the filter cutoff frequency outside of the audio range. This can be useful to create a slow attack effect.
• The step rate can be turned up high enough for smooth modulation. This can be used to create and autofilter effect, that can sound similar to a phaser or tremolo.
• A fixed filter effect is possible by turning the depth knob down all the way, and using the Frequency knob to set the filter cutoff.

Powered by a 9-volt battery or 9VDC adaptor with a negative center 2.1mm barrel style plug.