Rackears IconRackears.io
S-330 - Image 1

S-330

RackmountDigitalPolyphonic

Back in the late 80s, this little beast brought studio-grade sampling flexibility to bedroom producers on a budget, packing independent per-voice processing that let you sculpt sounds like a much pricier unit.

It's a 12-bit digital sampler with 16-bit output, offering 16-voice polyphony across 8 MIDI channels and 8 individual stereo outputs for ultimate routing control—assign tones, patches, or even single voices to any output. Sample at 30kHz for 7.2 seconds per bank or 15kHz for 14.4 seconds (total 28.8 seconds across two banks), with 750KB RAM holding 32 tones and 16 patches; each tone gets its own digital resonant filter, envelope, loop points, and LFO for wild mangling. The front panel is straightforward with value dial, buttons for sampling/edit/sequencer modes, and a monochrome display, all in a deep 1U rackmount chassis that pairs with 720K floppy disks for loading Roland's S-50 library or your own edits via utility software. A built-in pattern sequencer adds hands-on sequencing, and key modes like unison, velocity crossfade, or mix eat extra voices for thicker sounds.

Owners still geek out over its gritty character—better bass than early Akais, addictive filters for techno and ambient—and its voice assignment smarts remain a studio secret weapon, even if disk handling feels retro today.

Released

1987

Status

Discontinued

Synthesizer
Format
Rackmount
Type
Sample-based
Internal Battery
No
Voice
A/D
Digital
Polyphony
Polyphonic
Oscillators
-
Oscillator Type
-
Voices
16
Filter
Lowpass, Highpass, Resonant
Envelopes
8
LFO
1
Effects
No
Expression
Aftertouch
-
Velocity
Yes
MPE
No
Additional
-
Software
-
I/O
Audio In
1 stereo
Audio Out
4 stereo
Headphone
-
MIDI
In, Out, Thru
MIDI Type
DIN (5-pin)
Ports
Floppy Drive
Wi-Fi
No
Workflow
Arpeggiator
No
Sequencer
Yes
Mod Matrix
-
Memory
750k-byte, 28.8 seconds total sample time
Measurements
Dimensions
-
Weight
-
Last updated Mar 21, 2026