Moog Mavis – Semi-Modular Analog Synth Voice Kit

The Moog Mavis is a build-it-yourself monophonic synthesizer that combines classic analog Moog tone with hands-on patchability. Featuring a single VCO, ladder filter, wavefolder, and 24-point patch bay, it works standalone or as a 44HP Eurorack module—perfect for both newcomers and seasoned synth users.

Key Features

• Classic analog circuitry: Mixable sawtooth and pulse wave VCO with PWM and FM options.
• Legendary ladder filter: Resonant –24 dB/oct Moog low-pass filter for rich tone shaping.
• First Moog wavefolder: Adds harmonic complexity uncommon in compact analog designs.
• Modulation tools: Includes an analog LFO (triangle/square), ADSR envelope, mixer, sample-and-hold, attenuators, offsets, mults, and flexible routing.
• Compact patch bay: 24 patch points with 3.5 mm jacks for modular-style connectivity.
• Onboard keyboard: One-octave keypad with scale and glide functions immediately playable.
• Modular-ready: Easily removed from its enclosure to serve as a 44HP Eurorack module.
• DIY build format: No soldering required—quick assembly with included tools and cables.

Customer Benefits

Mavis gives you real analog warmth and modular flexibility at an approachable price. Beginners can learn synthesis by assembling and patching it, while modular users gain a powerful voice—either standalone or integrated into larger rigs.

Quick Specs

• Voice: Monophonic analog
• VCO: Saw & square blend with PWM and pitch modulation
• Filter: –24 dB/oct Moog ladder low-pass
• Envelope: Analog ADSR
• LFO: Triangle/square wave
• Utilities: Mixer, sample & hold, attenuators, offsets, mults
• Wavefolder: Diode-based for added harmonic richness
• Patch bay: 24 × 3.5 mm jacks
• Keyboard: 1-octave with glide and scaling
• Dimensions: Approx. 22.9 × 13.3 × 3.8 cm
• Weight: Approx. 0.43 kg

What’s in the Box

• Mavis PCB and panel
• Enclosure and protective cover
• Calibration tool, nut driver, fastener kit
• Power supply
• Five patch cables (approx. 15 cm each)
• Quick-start guide and patch overlays
• Product catalog and registration card

Use Cases / Ideal For

Perfect for budding synthesists learning modular basics and seasoned producers needing a compact Moog-voiced module. Great for desktop setups, Eurorack integration, sonic experimentation, or live patching sessions.

Compatibility

Works standalone or integrates into Eurorack systems. Patch CV and audio freely via the jack field. Play immediately via the built-in keypad, or control it externally via CV/Gate once rack-mounted.

Pros & Cons

✅ Pros:

• Authentic Moog analog tone in a budget-friendly, compact form
• Semi-modular flexibility with robust patch bay and utility functions
• Easy DIY assembly—no soldering needed
• Versatile: standalone or rack-mounted Eurorack voice

⚠️ Cons:

• No sequencer, arpeggiator, or MIDI—needs external control
• Onboard keypad is tiny and less expressive—external keyboard recommended
• Patch bay location may be awkward in certain rack setups

The Moog Mavis is a compact, genuine analog synth voice with modular spirit—DIY-friendly, expressive, and perfect for creative sonic exploration.