Moog Grandmother

Semi-modular analog synthesizer with a built-in arpeggiator, sequencer, and spring reverb tank
Moog Grandmother
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The Moog Grandmother is a 32-key standalone semi-modular synthesizer with a reconfigurable front panel. Right out of the box, no patching is required to access an endless supply of pure analog synth soundscapes. For the more experienced and experimental synth player, 41 patch points, 21 inputs, 16 outputs and parallel-wired 4-jack Mult are included for endless tonal possibilities. The Grandmother also includes a ¼” external audio input for guitars, drum machines, external keyboards and more.

Staying true to the classic Moog designs, the Grandmother features a fully analog sound engine, modulation engine and spring reverb tank. Two onboard analog oscillators offer the classic Moog selectable waveshape and hard sync functions as well as the beloved 4-Pole 10 Hz - 20 kHz Ladder Filter. Take your sound design even further by utilizing the onboard analog ADSR envelope generator and LFO with audio-rate capabilities.

The Grandmother also includes an onboard Arpeggiator and Sequencer that allows you to store up to three unique sequences with up to 256 notes each.

Besides being a powerful stand-alone synthesizer, the Grandmother can connect and control multiple devices through its DIN MIDI In/Out/Thru and USB MIDI. It also works well for expanding other modular synths including the Mother-32, DFAM, Eurorack systems and more.


  • Hardware Spring Reverb can be used to process external sounds
  • ¼” External audio input for guitars, drum machines, and more.
  • Semi-modular - no patching is required
  • Easy to use Arpeggiator and Sequencer
  • Store up to 3 sequences with up to 256 notes each
  • 2 Analog Oscillators with selectable waveshape and hard sync
  • Classic 4-Pole 10 Hz - 20 kHz Ladder filter
  • Patchable 1-Pole High Pass filter
  • Analog ADSR Envelope Generator
  • Analog LFO with audio-rate capabilities
  • 32-note Fatar keyboard with velocity
  • All normalized connections can be interrupted for full modularity
  • DIN MIDI In/Out/Thru and USB MIDI
  • Patchable bipolar attenuator
  • Works with Mother-32, DFAM, Eurorack modular systems and more
  • 41 patch points with 21 inputs, 16 outputs and a Parallel-Wired 4-jack Mult

Additional Information

Condition New
Width 23 in
Height 5.5 in
Depth 14.2 in
Unit Weight 16 lb
Chassis Desktop
Input Connectors 1/4 in. TRS
Output Connectors 1/4 in. TRS
Computer Connection USB
MIDI Connections In, Out, Through
Number of Keys 32
Connector Type 3.5 mm

Learned how to synthesize gross wet fart sounds. Would highly recommemd!

By Jeff D on February 10, 2019

The Moog Grandmother is an amazing mono synth. It is laid out clearly by section and color, sounds fantastic and the arpeggiator and sequencer are great. The Spring reverb is an excellent addition and provides immediate vibe. Thank you again to Chris Karn at Vintage King LA for the best service and price.

By Brett B on February 8, 2019

I’ve been a moog collector for years, and the Grandmother continues to impress me. The sonic pallet alone is impressive and diverse, while offering an easy to use interface. Powerful for it’s size and loaded with useful features ( including semi-modular patching) for it’s price. I love it.

By Bryan L on February 6, 2019

I hesitate to review this, because I’ve never encountered a mono synth with this combination of fantastic sound, playability, ease of use, flexibility, expandability *and* a great price. I feel an immediate connection with this instrument to the degree of wanting to keep the Moog Grandmother a secret, so every other synthesist doesn’t immediately rush out and buy one.

The basic sound and patchable modules are derived from the classic Moog modular synths, and have a character closer to the Moogs of the 60’s and 70’s than most of their recent offerings. So.. you get amazing sound to start with.. and from that point, the sky’s the limit.

If you prefer menus, presets and predictability, look elsewhere.. but if you enjoy performance and sonic exploration, then it’s time to meet your new Grandmother.

By Randall K on January 10, 2019

Really cool synth! It seems simple, but it’s quite versatile. If you’re used to presets it’s a fantastic way to play with limitations. And the price is right ;)

By Phillip S on January 7, 2019

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