• Formats: Audio Unit, VST3 (instrument)
• Architecture: Universal binary, native on Apple Silicon and Intel
• Operating system: macOS 12 Monterey or later
• Audio: stereo main output plus 15 additional stereo outputs (16 in total)
• Audio Unit hosts: Logic Pro, GarageBand, MainStage, Ableton Live, Studio One, Reaper, FL Studio, Digital Performer
• VST3 hosts: Cubase, Nuendo, Bitwig Studio, Ableton Live, Studio One, Reaper, FL Studio
• Multi-output: Logic Pro "Multi Output (16xStereo)"; in VST3 hosts, activate the additional outputs of the instrument
• Not available for: Pro Tools (AAX), Windows, Linux, iOS/iPadOS.

Mac with Apple Silicon or 64-bit Intel processor

macOS 12 Monterey or later

• RAM: 4 GB minimum, 8 GB recommended
• Disk space: 30 MB (expansion packs: 34-44 MB each)
• Display: 1280 × 800 or higher (plug-in window 1120 × 720)

No internet connection, account or activation required

CPU load per instance, percentage of one core (Apple M3, dense 140 BPM groove: sixteenth notes across the kit, shared reverb on):

Style          Kit                   48 kHz    96 kHz    48 kHz, 64-sample buffer
Synthwave      Neon Boulevard        0.29 %    0.59 %    0.31 %
Italo Disco    Riviera 84            0.25 %    0.53 %    0.26 %
Eurodance      Europa 95             0.26 %    0.57 %    0.29 %
Percussion     Percussioni Latine    0.27 %    0.54 %    0.28 %
Classics       Analog Boom           0.29 %    0.60 %    0.30 %

• Memory: 5 MB per instance, plus the loaded kit
• Kit memory: Classics 8-42 MB · Percussion 27-32 MB · Eurodance 40-46 MB · Italo Disco 40-90 MB · Synthwave 48-82 MB

Instances using the same kit share its sounds.

• Kit loading: sounds are synthesized in the background when a kit is loaded, on all cores but one, without interrupting playback: 0.1-0.7 seconds (Classics, Percussion), 1.6-2.8 seconds (other kits). A kit already loaded in another instance opens in 3 ms.

At sample rates above 48 kHz, kits are synthesized at 48 kHz and resampled during playback: memory and loading time do not increase.

• Polyphony: 64 voices, up to 6 per pad, choke groups
• Sample rates: 44.1 to 96 kHz
• Sound generation: offline synthesis with 2× oversampling and half-band anti-aliasing filter; 3-4 velocity layers and 2-3 round robins per pad
• Classics: analog drum circuits modelled from their structure (bridged-T resonators struck by the trigger pulse, square-wave oscillator banks, filtered noise)
• Latency: zero reported latency
• Per pad: level, pan, tune, decay, tone, drive, velocity sensitivity, start offset, reverb send, choke group, output
• Master: shared plate reverb, glue compressor, tape saturation
• User samples: WAV, AIFF, FLAC, CAF, MP3, M4A, on any pad; whole sample folders are mapped to the pads by file name
• Kit builder: any pad of any kit, including installed packs, on any pad of the current kit

• MIDI: General MIDI drum map (kick on C1, note 36), GM percussion notes for the percussion kits, per-pad note learn, velocity
• Outputs: one-click routing (all on Main, one output per pad, or grouped: kicks, snares, claps and rim, hats, toms, cymbals, percussion and FX)
• Automation: 181 automatable parameters, full state recall with the project (kit, notes, user samples)
• Sounds: 23 factory kits and an empty kit; user kits; 2 free expansion packs (Horror 80s, New Age Rituals) with 6 additional kits; kits can be exported and shared as .spumapack files

Free. All sounds synthesized by VS Studio: no third-party samples.

Audio Units, Logic Pro, GarageBand, MainStage and macOS are trademarks of Apple Inc. VST is a trademark of Steinberg Media Technologies GmbH. All other product names are trademarks of their respective owners.