Rackears IconRackears.io
S20 - Image 1

S20

DesktopDigitalPolyphonic

Back in 1997, this compact powerhouse brought high-quality 16-bit stereo sampling to bedroom producers and DJs who couldn't splurge on pro gear, packing features like beat-synced looping into a desktop unit that felt like a steal.

At its core, it's a sample-based digital drum machine with 8-voice polyphony and 16-part multitimbrality, letting you layer up to 16 banks of sounds across an onboard 4-track sequencer holding 30,000 notes. Sampling rates top out at 32kHz for crisp audio—7 seconds stereo with stock 1MB RAM, expanding massively to 131 seconds stereo or over 17 minutes mono at 8kHz with a 16MB SIMM upgrade via the easy-access slot. Hands-on controls include dedicated bank keys 1-16, tap tempo, reverse, loop/hold buttons, and a simple +/- cursor with 4-digit display for quick edits like resample crunch or BPM-matched loops; stereo RCA ins/outs, headphones, and MIDI In/Out keep it live-friendly in a rugged 290x205x80mm metal chassis weighing just 2kg, complete with a 3.5-inch floppy drive for Akai-compatible saves.

Users loved its fast, logical layout for live chopping and solid sound from the 64x oversampled delta-sigma converters, calling it rugged and fun for house grooves or quick ideas—though the basic sequencer and lack of effects or 1/4-inch jacks drew some gripes, it's still a go-to vintage workhorse today.

Released

1997

Status

Discontinued

Synthesizer
Format
Desktop, Drum Machine
Type
Sample-based
Internal Battery
-
Voice
A/D
Digital
Polyphony
Polyphonic
Oscillators
-
Oscillator Type
-
Voices
8
Tracks
8
Filter
Yes
Envelopes
-
LFO
-
Effects
No
Expression
Aftertouch
No
Velocity
-
MPE
No
Additional
-
Software
-
I/O
Audio In
-
Audio Out
1 stereo
Headphone
-
MIDI
-
MIDI Type
-
Ports
-
Wi-Fi
No
Workflow
Arpeggiator
No
Sequencer
Yes
Mod Matrix
No
Memory
1MB memory (STEREO, MONO), expandable to 5MB or 17MB by 72-pin SIMM.
Measurements
Dimensions
290 x 205 x 80 mm
Weight
2.0 kg
Last updated Feb 25, 2026