Envelope Filter Pedal For Bass. Straight from Dr Greens surgery is the Doctors Note. Bursting with analog envelope filter tones designed for bass guitar in an easy to use high quality pedal. Simple Rotary controls enable the user to dial in and set your oscillating frequency's with ease allowing the funk to pour from your finger tips. Find the sweet spot of the frequency range with the Q control, using the sensitivity and decay controls to tailor the nature of the effect. Lastly the mix control allows control over the wet/dry signal. The pedal also features true bypass switching and is housed in a custom designed steel casing that will stand up to being stomped on night after night. Pedal Controls: Mix - Adjust the blend of clean and effected signal, Sens - Control how the effect reacts to your playing, Decay - Length of time the effect is active, Q - The band width the effect covers. Power Requirement 9 v (centre pin negative power supply) H x W x D (mm) 61mm (Inc Knobs) x 67mm x 130mm (Inc Sockets) Weight (kg) 0.48