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Crum Drum 4-Voice Drum Machine - Image 1

Crum Drum 4-Voice Drum Machine

Drum MachineDigital

Imagine hitting a single button and watching a whole new rhythm unfold, full of happy accidents that keep your beats alive and unpredictable. That's the magic at the heart of this compact 4-voice drum machine, where randomization and probability turn static sequences into endlessly evolving grooves.

Its digital percussion synth delivers Kick, Snare, Hi-Hat, and Bass voices, each with 8 tweakable parameters like volume, frequency, decay, filter, tone, probability, type switch for sonic variations, and more. A WYSIWYG panel lets you edit one voice at a time or all simultaneously for quick shifts in vibe, while the 16/32/28-step sequencer handles randomized patterns—hit the Beat button to regenerate steps on the fly. Built-in overdrive, tempo-synced delay, reverb, and swing add polish, with USB-powered portability (14.5 x 12.5 x 4.2 cm), stereo 3.5mm out, CV input for modulating params, clock I/O, and full USB MIDI for syncing or sequencing external gear.

Owners love how it sparks creativity without overwhelming, praising the organic feel and travel-ready size, though some note the fixed voices limit extreme sound design. It's a perfect pocket companion for anyone craving generative beats that surprise.

Released

2023

Status

In Production

Synthesizer
Format
Drum Machine, Micro
Type
Digital
Internal Battery
No
Voice
A/D
Digital
Polyphony
-
Oscillators
-
Oscillator Type
-
Voices
4
Filter
Highpass, Lowpass
Envelopes
-
LFO
-
Effects
overdrive, reverb, delay
Expression
Aftertouch
No
Velocity
No
MPE
No
Additional
4-voice percussion synth (Kick, Snare, Hi-Hat, Bass), 8 adjustable sound parameters per instrument, Type switch for different sonic characters or quantized notes for Bass, randomized and probability-based sequencing, 16/32/28-step sequencer, Beat button for real-time parameter changes on active step, built-in delay/reverb/overdrive/swing, CV input and USB MIDI, clock output (5v), clock/CV input (3-12v)
Software
-
I/O
Audio In
0
Audio Out
1 stereo (3.5mm)
Headphone
0
MIDI
In, Out
MIDI Type
USB
Ports
USB, CV/Gate, Clock In, Clock Out
Wi-Fi
No
Workflow
Arpeggiator
No
Sequencer
Yes
Mod Matrix
No
Memory
No
Measurements
Dimensions
-
Weight
-
Last updated Mar 17, 2026