Not just another clone or continuation of the 808-esque, acid-style kicks of the Mutant Bassdrum – the Mutant BD9 seeks to explore uncharted bassdrum territory by having an integrated sub-oscillator for maximal auditory obliteration.
MIX lets you blend between the SHELL and SNAPPY tones that make up the overall snare drum
turn up the DRIVE to get overdriven snare tones with intense harmonics. The purple LED indicates when the snare begins to overdrive
like the other Mutant Drums, signal levels have been normalized for modular level input and output (up to 20Vpp)
SHELL synthesizes the drum skins
analog bridged-t sinewave oscillators, for those organic-sounding tones we’ve come to love from the 808
TONE control blends between the two sinewaves of different frequency
SHELL PITCH lets you tune one of the sine waves, to change the pitch of your snare drum
SNAPPY adds some noise to the snare
an analog white noise generator feeds the SNAPPY circuit
an external input lets you patch any sound source you like into the SNAPPY generator
voltage control of SNAPPY decay
SNAPPY feeds into an analog selectable high-pass or band-pass filter
voltage control of filter cutoff frequency
when nothing is plugged into the cutoff CV input, the SNAPPY envelope OR the adjustable sinewave from the SHELL generator normalize through the CV attenuverter for cutoff CV. A jumper on the back of the module allows you to select which of these internal modulation signals are routed here
the filter has three resonance settings: classic 808 (low resonance), high resonance, and self-oscillation
bipolar attenuators (aka: ‘attenuverters’) on CV inputs
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The SWAMP is a random CV and audio generator inspired by the famous Wiard Wogglebug module; it’s often the heart of self-generating patches and brings controllable randomness to your modular system.
In the SWAMP module we introduced numerous modifications and improvements to extend potentiometer range, added an audio input, which, when connected, replaces the internal Tone oscillator, replaced the expensive dual vactrol, built S&H circuit around the made in Riga S&H IC AS1100CK2, added audio waveform selection switches, CV output configuration jumpers and much more.
Three random audio frequency outputs
External audio input routed to ring modulator
Three random CV outputs
Clock input and output to sync the module to your modular system
CV control over internal clock for even more extreme randomness
The core of the VCO is borrowed from famous Russian synth Polivoks VCO and in exponential converter we use the original matched transistor IC that was used in Polivoks. But there are significant updated schematics to have the most out of your modular setup.