KORG Collection 6 v6.3.0 [WiN-MAC]

• Product: KORG Collection 6
• Developer: KORG
• Version: 6.3.0
• Format: Standalone, VST3, AAX, AU
• Requirements: Windows 11 or later, macOS 12 or later
• Source: https://www.korg.com/us/products/software/korg_collection/

KORG Collection 6 is a 21-instrument software suite spanning the full range of KORG synthesis architectures from 1974 to the mid-2000s: analog monophonic and polyphonic synthesis, semi-modular patching, vector synthesis, PCM workstation, physical modeling, analog modeling, premium acoustic piano, vintage keyboard, rhythm, multi-effects, and — new in Collection 6 — a dedicated multi-mode filter design tool. Analog instruments use Component Modeling Technology (CMT), which encodes transistor, capacitor, and resistor values from original circuit analysis rather than approximating output waveforms. Collection 6 adds four instruments new to the software catalog: the PS-3300 (sub-50 units produced, 1977–1981), the TRINITY workstation (1995), the SGX-2 piano engine from the KRONOS and NAUTILUS, and the Filter Ark filter processor. The differentiator is first-party development — KORG holds the original circuit documentation, and CMT modeling was built under supervision of the original engineers from actual hardware schematics.

Key Takeaway

Productions requiring historically accurate KORG synthesis textures across multiple eras — house, R&B, film scoring, ambient, and 90s workstation sounds — are where this collection functions as a primary synthesis library rather than a supplemental purchase. It displaces both piecemeal individual-title licensing and third-party emulations for producers who need institutional source accuracy rather than character approximation. The collection does not represent KORG’s full catalog: the KRONOS workstation engines beyond SGX-2, the Minilogue/Prologue/Monologue modern analog desktop range, and the volca series are absent. Producers whose synthesis requirements center entirely on non-KORG architectures find no cross-platform value here.

CMT: Transistor Values in Source Code, Not Transfer Functions

Component Modeling Technology does not match the frequency response curve of the original hardware’s output. It encodes the component-level circuit — transistor operating voltages, capacitor values, resistor tolerances, diode nonlinearities — and reconstructs the audio signal path from those values in software. The distinction is audible in modulated and driven sounds: the interaction between a saturating filter and an oscillator waveshape, the way envelope shape curves change as the circuit responds dynamically, the per-voice variation that emerges when multiple voices share the same model but run independently. Transfer-function models flatten these interactions by targeting the aggregate output; CMT reproduces the mechanism that generates it.

For the ARP 2600, KORG worked alongside ARP Instruments co-founder David Friend and verified the implementation against the original ARP 2600 Patch Book — 100 documented patches confirmed to replicate hardware behavior in the plugin. Oscillator sync and ring modulation use a patented low-aliasing oscillating circuit developed for the KRONOS, resolving the aliasing problem that occurs in the digital domain when analog waveforms reset within a single sample cycle. The three hardware filter revisions across the ARP 2600’s production run — each used a different low-pass filter circuit with a distinct resonance and frequency response character — are all selectable from a single switch in the plugin.

CMT was first deployed in the original KORG Legacy Collection (2004) and has been extended across six collection versions. The technology has a practical boundary: digital audio operates at half the sampling rate, while analog circuits rely on theoretically infinite frequency ranges. KORG addressed this specifically for oscillator circuits with the KRONOS-derived low-aliasing oscillator, but the bandwidth ceiling remains relevant in extreme high-frequency behavior — complex FM or hard sync patches where the gap between analog and digital bandwidth becomes audible.

The PS-3300: Per-Voice Independent Architecture at 180 Voices

The PS-3300 hardware consisted of three fully independent 48-voice synthesizer units — not a shared oscillator bank with polyphonic note assignment, but 144 separate VCO/VCF/VCA signal paths operating simultaneously, each with its own dedicated wave shaper. Component tolerances varied voice-to-voice, producing slight pitch and timbral variation across a sustained chord that a shared-bus polyphonic architecture cannot replicate. This is the defining characteristic of the PS-3300’s sound: a fully polyphonic instrument where every note behaves as though it is its own monophonic synth.

The Collection 6 PS-3300 models that independent per-voice architecture with CMT across approximately a year of circuit analysis — cross-referencing measured hardware values with original and modern schematics. The plugin provides 60 voices per unit (180 total), exceeding the hardware’s 144-voice count and the 147-voice hardware reissue’s 49-per-unit allocation. Per-voice CMT modeling at that polyphony is the highest single-instance CPU demand in the collection; dense patches with multiple modulation sources active at full polyphony profile significantly higher than the other analog instruments and should be stress-tested in large template sessions before live playback commitment.

The PS-3300 was never accessible to most working producers even when it was new — hardware units trade in the tens of thousands of dollars when they surface. The practical consequence is that most existing PS-3300 sounds in production history came from musicians who briefly encountered the instrument rather than owned it. Collection 6 is the first widely accessible CMT-modeled implementation built from first-party circuit documentation.

M1 Through TRINITY: The PCM Workstation Lineage Completed

The M1 (1988) established the PCM workstation format and its AI (Advanced Integrated) synthesis system combined sampled PCM waveforms with digital effects in a way that produced a sound character distinct from pure sample playback. The plugin includes all 19 original ROM expansion cards plus the M1EX internal expansion and T-series sounds, totaling over 3,300 presets across 34 cards. The “M1 Piano” program carries the specific compressed-top, wide-mid character that defined late 80s and early 90s pop, house, and R&B records and remains in the library exactly as the hardware produced it.

The TRINITY (1995) fills the software gap between the M1 and TRITON (1999). Its DRS synthesis system sampled at a higher quality ceiling than the M1 and introduced the first touchscreen interface on a production synthesizer. The plugin was built under supervision of the original TRINITY engineers, includes all four expansion libraries (TFD-1S through TFD-4S) and all TR-Rack sound module samples, and carries over 2,000 Programs and Combinations. Version 1.1.0 added PCG file import — original hardware patch libraries load directly into the plugin without manual reconstruction.

The TRITON plugin reproduces the HI (Hyper Integrated) synthesis system sampled at 48kHz with all 8 expansion boards, plus the TRITON Extreme’s vacuum tube insert effect stage — a hardware VT circuit in the signal path that introduced harmonic content at the insert level, modeled in the plugin — under one license. TRITON’s EASY mode reduces the original hardware’s multi-page parameter structure to a single editing page covering oscillator selection, filter, EQ, and effect routing, a workflow accommodation the hardware never offered.

WAVESTATION Vector Synthesis and the Polyphony Expansions

The WAVESTATION (1990) introduced advanced vector synthesis — a joystick-controlled crossfade between four oscillators, each of which could be a wave sequence rather than a fixed waveform. Wave sequences placed individual waveforms in a timed order, producing rhythmic or melodic patterns from within a single sustained note. The plugin includes PCM data from all four hardware variants and 7 expansion card types, totaling over 1,500 presets. The randomize function added in Collection 2 generates wave sequence combinations that no preset encodes, opening sound design territory between the documented factory sounds.

Several instruments in the collection were originally monophonic or limited-polyphony hardware that the plugin versions extend beyond original constraints, with CMT applied independently to each voice. The MS-20, strictly monophonic in hardware, runs 32 voices with 16-voice unison and detune/spread in the plugin; each voice runs its own component-level dual-filter simulation rather than a shared bus approximation. Mono/Poly reaches 128-voice polyphony with a virtual patching matrix exposing 159 modulation sources against 35 destinations — a degree of routing the original four-VCO hardware’s fixed modulation architecture never supported.

The ARP ODYSSEY was duophonic at maximum in hardware; the plugin extends it to 16-voice polyphony with an arpeggiator that programs like a step sequencer. All three ARP ODYSSEY filter revisions — Mk1 4012, Mk2 4035, and Mk3 4075, each with a distinct resonance curve — are simultaneously available in the plugin through a hardware-revision selector. The original hardware only ever contained one filter type per unit.

SGX-2: MDS Velocity Interpolation and Per-Key Loopless Sampling

The SGX-2 piano engine uses Multi-Dimensional Synthesis (MDS), developed by KORG to handle velocity-dependent tonal transitions without audible crossfades between sample layers. Standard multi-sampled piano plugins produce a stepped velocity response: the spectral character shifts at discrete threshold points when crossing between layers. MDS calculates continuous tonal transitions across the dynamic range, so the attack character at mezzo-piano transitions smoothly toward forte rather than snapping to a different sample at a fixed crossing threshold.

Five concert grand piano engines are included: German Grand, Japanese Grand, Italian Grand, Japanese Small Grand, and Japanese Upright. Each uses per-key loopless stereo samples — the sustain phase of every note decays naturally without cycling at a splice point, eliminating the waveform periodicity artifact audible in sustained notes at soft dynamics on loop-based instruments. Up to 12 velocity layers per key extends dynamic resolution, and mechanical key-off noise is modeled through release velocity processing in real time: hard key releases produce audible mechanical transients, soft releases do not.

Sympathetic string resonance is physically modeled rather than approximated through convolution or added reverb — held notes through the damper pedal interact as resonant string coupling. On sustained chord passages in dense arrangements, this resonance accumulates in the low-mid range; damper pedal depth controls resonance level and may require adjustment depending on mix density.

Filter Ark’s Position in the Collection

Filter Ark is a multi-mode filter design tool rather than a synthesizer or effect processor emulation — it does not model a specific piece of KORG hardware. The plugin is structured around filter design across a range of topologies, and its inclusion in Collection 6 adds a current-production signal processing tool to a collection otherwise defined by historical emulations. For producers who already own Collection 5 and are upgrading, Filter Ark represents a functional addition outside the established instrument-emulation framework of the collection.

The distinction between Filter Ark and MDE-X, the multi-effects processor also included in the collection, is architectural: MDE-X uses effect algorithms derived from the TRITON family and functions as a period-accurate KORG effects chain. Filter Ark is a design tool built for contemporary production use rather than a recreation of any specific hardware effect. Producers evaluating the collection who already have robust filter processing in their signal chain should factor Filter Ark accordingly — it adds filter design capability but carries no specific hardware character to reconstruct.

Synthesis Architectures the Collection Does Not Reach

Collection 6 covers KORG-designed instruments exclusively. No Moog ladder filter architectures, no Sequential Prophet circuits, no Roland DCO or ACB designs, and no Yamaha FM synthesis appear here. Producers whose vintage synthesis requirements center on those architectures need separate licenses regardless of Collection 6’s scope, and the collection carries no cross-vendor value for that use case.

Within the KORG catalog itself, the collection ends in the mid-2000s. The KRONOS workstation engines beyond SGX-2 — the HD-1, MOD-7 Wavescanning, AL-1 analog modeling, CX-3 tonewheel organ, and STR-1 plucked string engines — are absent. The modern Minilogue, Prologue, and Monologue desktop analog synthesizers have no Collection equivalent. The Prophecy plugin covers five of the original seven MOSS oscillator types; the two omitted types represent a gap for producers specifically targeting those synthesis architectures, and KORG’s documentation does not specify which two are excluded.

The ELECTRIBE-R and KAOSS PAD are a rhythm sequencer and an XY-pad effects processor respectively — neither functions as a conventional melodic instrument. Producers evaluating the collection primarily as a melodic synthesis library are pricing 19 instruments rather than 21.

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