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Moog Subsequent 25 Compact Duophonic Analog Synthesizer

Compact, 25-key, 2-note paraphonic analog synthesizer combining the hands-on analog soul of old school Moog instruments with the updated workflow of a modern sound-design machine

Product Description

Inspired by the award-winning Sub Phatty, the Moog Subsequent 25 is a 2-note paraphonic analog synthesizer that combines the high-quality analog design of classic Moog instruments with the sound engine of a modern synthesizer. With improved headroom, increased harmonic saturation and a re-tuned Multidrive circuit, Subsequent 25 takes the Sub Phatty to a whole new level.


The Moog Subsequent 25 is a cutting-edge analog synthesizer with two built-in oscillators, a dedicated sub oscillator and an onboard noise generator in a compact package. Trigger Subsequent 25 using 25 semi-weighted, velocity-sensitive keys, or via four onboard CV input. You can even interface with your favorite DAW via DIN and USB MIDI. Subsequent 25 is fully integratable with MIDI, including automation and recall of every parameter. All of these features combined with a compact footprint and a lightweight design make Subsequent 25 the perfect synth for the stage or the studio.


Subsequent 25 makes it easier than ever to dial in thick, rich tones and complex soundscapes with paraphonic functionality. Engage the new Duo Mode to split Oscillators 1 and 2, giving you the power to play two different notes at once for limitless sonic possibilities. Subsequent 25 comes packed with an array of expertly programmed presets that will get you creating right away. With its streamlined interface and dynamic sound design capabilities, Subsequent 25 is ideal for everything from powerful synth bass to dynamic analog percussion to harmonic-rich leads.


Sculpting mesmerizing sounds and visceral textures with Subsequent 25 is simple with 32 front-panel knobs. Subsequent 25’s analog filter section contains the transformative Multidrive circuit, which uses a unique combination of OTA distortion and FET drive to create thick, rich tones. Combined with the extended headroom of the Mixer Section, Subsequent 25 opens up a new range of classic clean tones. New gain staging in the Ladder Filter provides ample harmonic saturation and analog compression for a smooth, creamy low end.

Under-the-hood functions

Each function is accessible from the Subsequent 25 front panel, free software Editor/Librarian, or via MIDI:

  • Mono/Duo Mode 
  • Duo Osc 2 Priority 
  • Filter Velocity Sensitivity
  • Volume Velocity Sensitivity
  • Ext. Audio Level
  • Osc 2 Beat Frequency
  • VCO Gate Reset
  • LFO Gate Reset
  • Pitch Bend Up Amount
  • Pitch Bend Down Amount
  • Glide Legato
  • Glide Type
  • Filter Poles
  • Wave Mod. Destination
  • LFO KB Tracking
  • LFO Range
  • Filter EG Reset
  • Amp EG Reset
  • Legato
  • Gate On/Ext.
  • MIDI Ch. In
  • MIDI Ch. Out
  • Local Control
  • 14-Bit MIDI Output
  • MIDI Path In
  • MIDI Path Out
  • MIDI Merge DIN
  • MIDI Merge USB


  • Sound Engine Type: Analog (two Oscillators, one Sub Oscillator, one Noise Generator)
  • Number of Keys: 25
  • Type of Keys: Semi-weighted, Velocity-Sensitive
  • Other Controllers: Pitchbend, Mod Wheel
  • Polyphony: Monophonic, 2-Note Paraphonic
  • LFO: Triangle, Square, Sawtooth, Ramp, Sample & Hold
  • Filter: Moog Ladder Filter with 6/12/18/24 dB per Octave Slopes
  • Number of Presets: 16 (4 Banks of 4)
  • Effects Types: Multidrive
  • USB: Type B
  • MIDI I/O: In/Out/USB
  • Other I/O: Filter CV in, Pitch CV in, Volume CV in, KB Gate in
  • Software: Plug-in and standalone editor and librarian for Mac/PC
  • Power Supply: 110 - 240 V AC (Internal)

Product Specifications

Condition New
Width 20.2 in
Height 6.7 in
Depth 14.7 in
Unit Weight 16 lb
Input Connectors 1/4-inch TRS
Output Connectors 1/4-inch TRS
Computer Connection USB
MIDI Connections In, Out
Analog or Digital Analog
Key Type Semi-Weighted
Number of Keys 25
Synthesizer Format Keyboard
Polyphony Monophonic, 2 note Paraphonic
Aftertouch No
Arpeggiator Yes
Effects Multidrive
Envelope 1 ADSR for filter, 1 ADSR for amp
Filters Moog ladder filter
Oscillators 2 VCOs, 1 sub-oscillator, 1 noise generator
Sound Engine Analog Monophonic Synthesizer
Velocity Sensitive Yes
Waveforms Triangle, saw, square, pulse

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
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In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
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This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
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The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
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