Moog Grandmother Semi-Modular Analog Synthesizer with Spring Reverb & Step Sequencer

The Moog Grandmother is a semi-modular analog synthesizer that delivers classic Moog sound with a playful twist. From its dual analog oscillators and legendary 4-pole ladder filter to the lush, built-in analog spring reverb, Grandmother is packed with vintage tone and modern workflow features. Whether you’re designing deep basses, cosmic leads, or experimental textures, this synth is ready to perform — no patching required.

The 32-key Fatar keybed feels superb under your fingers, while the onboard arpeggiator and 256-step sequencer allow you to save and perform up to three sequences on the fly. Its 41-point patch bay gives you full modular control and makes it an ideal hub for integrating with Eurorack, Mother-32, DFAM, or any CV-based rig. Moog’s Grandmother is more than an instrument — it’s a hands-on sound design playground.

Features

• Classic Moog analog tone with semi-modular flexibility
• Built-in analog spring reverb for lush, textured effects
• No patching required — perfect for beginners and pros alike
• 32-key Fatar keybed with velocity sensitivity
• Arpeggiator and 256-step sequencer with memory for 3 sequences
• Dual analog VCOs with PWM, sync, and FM modulation
• Legendary Moog 4-pole ladder filter and patchable 1-pole highpass filter
• 41-point patch bay for Eurorack and modular integration
• MIDI I/O + USB MIDI for DAW and external hardware compatibility
• Vintage-style layout with bold color-coded sections

Specs

• Type: Semi-modular analog keyboard synthesizer with sequencer
• Analog/Digital: Analog
• Keys: 32 full-size, velocity-sensitive (Fatar keybed)
• Polyphony: Monophonic
• Oscillators: 2 × analog VCOs, 1 × white noise generator
• Waveforms: Triangle, Saw, Square, Pulse (PWM)
• LFO: 1 × analog LFO (capable of audio-rate modulation)
• Filters:
  • 1 × 4-pole 24dB/oct Moog Ladder lowpass filter
  • 1 × patchable 1-pole highpass filter
• Envelope Generator: 1 × ADSR (with dedicated sustain fader)
• Effects: Real analog spring reverb (processes internal/external signals)
• Sequencer: 3 presets, 256 steps each
• Arpeggiator: Yes
• Patch Points: 41 (21 inputs, 16 outputs, 4-jack passive mult)
• Audio Inputs:
  • 1 × 1/4" (instrument in)
  • 1 × 1/8" (reverb in)
• Audio Outputs:
  • 1 × 1/4" (main/headphones shared)
  • 1 × 1/8" (reverb out)
  • 1 × 1/8" (Eurorack out)
• Headphones: Shared with main out
• MIDI I/O: In, Out, Thru (5-pin DIN), USB MIDI
• Other I/O: Clock In/Out, Reset In, On/Off In
• USB: 1 × Type B
• Power Supply: 12V DC 2A (included)
• Dimensions (H x W x D): 5.5" × 23" × 14.25"
• Weight: 16 lbs.