Echo Rumble is a combination of Noise Rumble and a Delay effect (based on PT2399). Each effect has it's own Bypass button, so they may be used as single effects or you can destroy your sound atmosphere turning them On together!
Noise Rumble Knobs: Post - gain of the output stage Tone - simple Muff-like tone control Pre - gain of the input stage Power - current supply, normally on Max, turning it counter clockwise brings interesting glitches and noises Vol - volume Gate - gating low signals in the Effect mode Rumble - fuzz character in the Effect mode Osc - level of the feedback output to the input, works when Osc switch is On
!When the Synth mode is On all knobs work transcendentally!
Switches: Post - adds clipping diodes into the output stage Pre - adds clipping diodes into the input stage Osc - activates self-oscillation Synth mode
Tech info: Input/Output: 1/4" (6,35mm) MONO Power Supply: 9VDC, tip negative PSU not included