Rackears IconRackears.io
Drop Analog Semi-Modular Groovebox - Image 1

Drop Analog Semi-Modular Groovebox

DesktopAnalogMonophonic

Imagine stumbling upon a groovebox that packs the punch of a classic analog drum synth but invites you to tear it apart and rebuild it with banana jacks— that's the wild spirit of this 2024 release from Mad Sound Factory.

At its heart, it's a fully analog semi-modular beast with a VCO featuring octave and sub-octave generators, FM input, and an extra click oscillator, all driving a punchy old-school VCA and lowpass filter before hitting the saturation stage. The noise generator steals the show with six distinct voices, from self-oscillating tones to wild hats and textures, while two LFOs—one as a clock with 1/64 to 1/2 dividers and the other with variable triangle/pulse shapes—fuel rhythmic madness via banana patch points for FM, gates, resets, and more. Super compact for backpack gigs, it runs on USB-C power, offers a main "DROP" trigger pad for instant fun, MIDI USB in for sync, and CV/gate/clock I/O including triggers, all in a monophonic setup across six noise-driven "tracks" you sequence on the fly.

Early players call it brutally rude and earth-shattering for bass and kicks, praising the endless patching for experimental beats, though some wish for filter resonance control. It's a sound designer's playground that fits right into modular rigs or stands alone for instant analog grooves.

Released

2024

Status

In Production

Synthesizer
Format
Desktop, Semi-Modular, Drum Machine, Experimental
Type
Analog, Subtractive, Noise
Internal Battery
No
Voice
A/D
Analog
Polyphony
Monophonic
Oscillators
1
Oscillator Type
VCO (Voltage Controlled)
Voices
1
Tracks
6
Filter
Lowpass
Envelopes
2
LFO
2
Effects
Saturation
Expression
Aftertouch
No
Velocity
No
MPE
No
Additional
semi-modular, banana jacks, 6 noise oscillators, sub-octave generator, clock dividers, germanium circuitry, touch patching
Software
-
I/O
Audio In
-
Audio Out
1x 1/4" TRS
Headphone
1x 1/4" TRS
MIDI
In
MIDI Type
USB
Ports
USB-C, CV/Gate, Clock In, Clock Out, Trigger In, Banana
Wi-Fi
No
Workflow
Arpeggiator
No
Sequencer
No
Mod Matrix
Yes
Memory
No
Measurements
Dimensions
-
Weight
-
Last updated Feb 26, 2026