Schlappi 100 Grit, AntiMatter BrainSeed, & BASTL Instruments Dark Matter

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Three listings from supporting member brian comnes on Reverb here.

Instruction manuals for 100 Grit & BrainSeed pictured below.

"The 100 grit is a distortion, VCA, and low pass filter module with 8 brass touchpoints.

Features:

8 brass touchpoints
2 inputs to transistor core low pass filter
Voltage control over frequency, resonance, and gain
OTA VCA with soft saturation characteristics
Distortion circuit based around a vintage headphone amplifier driven into instability
Three position x100 gain switch with off, on, and momentary on settings
Each input and cv input is normalled to a different feedback path (6 total)
Seperate outputs for the VCA and distortion
Can operate as a vintage voiced VCA and LPF or a screaming distortion and noise effect
All analog design"

"Dark Matter Eurorack module, excellent condition, with original manual

Features

DRIVE

Input VCA with gain and soft clipping
Hyper drive switch for extra punch
TONE

2 band equalizer
Voltage controlled bass and treble boost/overdrive
DYNAMICS

Envelopes generated by INPUT signal
Outputs 0-5V. Normalized to FBK CV and X-FADE CV inputs
Low and High decay time switch
Input pre or post DRIVE switch
Envelope monitor LED
FEEDBACK

Voltage controlled feedback
High frequency “warning” LED
External feedback loop section
FBK OUT and FBK IN jacks
Output phase switch
FBK VCA in/out switch
CROSSFADER

Voltage controlled crossfade between input and feedback
Input pre/post-drive crossfade switch
DYNAMICS envelope normalized to mix CV input
Things to Do with Dark Matter

Excite audio signals to the breaking point with 4 flavors of voltage-controlled overdrive
Turbo-charge percussive hits and drum beats
Add sub-octave tones and timbrel richness to melodies and bass lines
Tweak your tone with a crunchy overdriving 2 band EQ
Add signal ducking and gating effects with the built-in envelope follower
Go the feedback way and create meandering loops through your rack using the 10 I/O jacks... Feedback your feedback"

"Want generative CV, use your audio to create it. Brainseed samples audio in and creates a CV note stream , you control Length , scale etc.

Pretty interesting and better than pure random.

record and playback up to 1000 steps
random voltage generator function
shift input to transpose sequences
automated recording via the reseed input
variable or fixed length modes
save function to keep your sequence on power down
optional 3-mode output quantizer function
freeze input and trigger output per step to create fun rhythmic variations
use as a digital s&h (no drift!), random generator, simple quantizer, note or modulation recorder, rhythm generator, or pseudo arpeggiator.
capture values from your keyboard (using a midi-cv interface), lfos, chaos generators, noise, envelopes, dc offset knobs, or resample other sequencers!"