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Mono Cassa - Image 1

Mono Cassa

DesktopAnalogMonophonic

Born from the punchy low-end heart of the LepLoop V2, this analog mono bass drum module distills that classic cassa voice into a standalone powerhouse for techno grooves and beyond.

Housed in a compact desktop enclosure measuring just 120 x 75 x 55 mm, it packs a fully analog subtractive synthesis engine with a resonant filter that self-oscillates at high resonance settings. Five hands-on knobs shape your sound: Trig Mix blends the built-in tempo generator with external triggers via the 3.5mm input (accepting trig, gate, CV, or audio); Freq sets pitch while influencing resonance; Reso dials in damping or squealing oscillation; Dist adds gritty overdrive; and Tempo speeds up the internal clock. Toggle switches engage two LDR photoresistors—one for frequency, one for resonance—for light-controlled modulation, and a hidden touch screw doubles the tempo with a tap. Sync it out via Trigger Out, and monitor through the 1/4" mono jack, all powered by 12V DC center-positive.

Users love its raw, aggressive boom that's perfect for live jamming or modular integration, with the LDRs sparking creative chaos in low-light setups—though some note the pots can feel a bit loose after heavy use.

Released

Unknown

Status

In Production

Synthesizer
Format
Desktop
Type
Subtractive
Internal Battery
No
Voice
A/D
Analog
Polyphony
Monophonic
Oscillators
-
Oscillator Type
-
Voices
1
Tracks
1
Filter
Resonant
Envelopes
-
LFO
-
Effects
No
Expression
Aftertouch
No
Velocity
No
MPE
No
Additional
-
Software
-
I/O
Audio In
-
Audio Out
1x 1/4" unbalanced mono jack
Headphone
-
MIDI
-
MIDI Type
-
Ports
Trigger In, Trigger Out
Wi-Fi
-
Workflow
Arpeggiator
No
Sequencer
No
Mod Matrix
No
Memory
-
Measurements
Dimensions
120 x 75 x 55 mm
Weight
-
Last updated Feb 26, 2026