Moog Grandmother Analog Keyboard Synthesizer

Semi-modular design and real spring reverb make the Grandmother a powerful analog synth, handmade in NC by the pioneering, one-and-only Moog Music company.


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Moog Music Slim Phatty Analog Synthesizer

No longer available at zZounds
Make fat sounds with this slimmed-down monosynth! Moog packed 2 oscillators, a Ladder Filter, 4 CV inputs, MIDI/USB I/O and 100 presets into the Slim Phatty.

Real Moog sound now fits your back pack and your budget. The Moog Slim Phatty's 100% analog signal path, intuitive user interface, rugged construction and rich MIDI, USB and Control Voltage functionality make it a must-have for producers, touring musicians and DJs.

At just 17" wide, it goes where no other Moog has gone before. Earth-shaking basses, scorching leads and more are now housed in a high-quality instrument ideal for laptop artists and space conscious musical road warriors.


- Super-portable Moog synth -- it's even rack-mountable
- 100% analog audio path
- Arpeggiator and LFO sync to MIDI & Tap Tempo
- USB, MIDI & control voltage connectivity
- External audio processing
- Earth-shaking basses, scorching leads & sonic infinity

Based on the powerful Little Phatty sound engine, the Slim Phatty is the descendant of the iconic Minimoog Model D and features the classic Moog Ladder Filter, the touchstone of analog sound design.

In addition to shaping the sound of its on-board oscillators, the Slim Phatty's filter is a valuable production tool that can be used to process external audio, sweetening your favorite audio source with everything from smooth analog warmth through wet, resonant filter sweeps.

The Slim Phatty's convenient size makes it an ideal voice expander for your existing gear, with two oscillators of massive Moog sound that are always just a MIDI cable away. An upgraded tuning scale feature and editor allows easy exploration of alternate scales read more and tunings. Microtonal, just intonation, quarter-tone, world music scales and more make the Slim Phatty an international traveler. Good thing it has a universal power supply!

In addition to the world of MIDI and USB gear, the Slim Phatty's Control Voltage inputs give it unlimited realms of expression and sound design possibilities. "Modular synth" style patching with Moogerfooger effects processors, the CP-251 Control Voltage Processor and other Moog synths (even The Moog Guitar!) creates soundscapes previously available only on large modular systems. Connecting to the Etherwave Plus Control Voltage Theremin or the MP-201 Multi-Pedal adds unique and intuitive new modes of expression.
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Arpeggiator: synchronize to internal clock, LFO or external clock

MIDI Clock Sync: synchronize arpeggiator and LFO tempos to external synths, drum machines, software and more.

Tap Tempo: synchronize arpegiator and LFO to live music.

Pot Mapping: reprogram panel knobs to control any Slim Phatty parameter.

Sound Engine: Monophonic, 100% Analog signal path

Oscillators - 2 ultra-stable analog VCOs.
Oscillator parameters:
- Osc. 1 Octave: 16', 8', 4', 2'
- Osc. 1 Wave: Continuously variable from triangle through saw and square to narrow pulse.
- Osc. 1 Level
- Glide Rate
- Osc. 1 to 2 Sync On/Off
- Osc. 2 Frequency
- Osc. 2 Octave: 16', 8', 4', 2'
- Osc. 2 Wave: Continuously variable from triangle through saw and square to narrow pulse.
- Osc. 2 Level

Fine Tune (Global)

Octave Up/Down (Global)

Filter - Voltage Controlled Low Pass Filter: 24 dB /Oct Moog Ladder filter with overload.

Filter parameters:
- Cutoff
- Resonance
- Kb. Control Amount
- Filter Env. Amount
- Overload

Envelope Generators - 2 ADSR EGRs assigned to filter cutoff frequency and volume.

EGR parameters:
- Attack
- Decay
- Sustain
- Release

Modulation Parameters: LFO Rate

Mod Source: LFO triangle, LFO square, LFO sawtooth, LFO ramp, Filt. EGR or Sample and Hold, and Osc. 2 or Noise

Mod Amount: amount of modulation w/ the mod wheel all the way forward

Mod Destination: Pitch, Osc. 2, Filter, Wave

- AC In
- Power On/Off

Audio Out:
- Ext. Audio In: accepts +4dBu line level signal

Pitch CV In (1 V/Oct):
- Filter CV In
- Volume CV In

Keyboard Gate In:
- MIDI Out
- MIDI Thru


Headphone Out

- Rack Mount Adaptor
- Wooden Side Panels

Power: 100-250VAC, 50-60 Hz

Dimensions: 17"W x 4 9/16"H x 5 5/16"D

Weight: 5.75 Lbs

For support or warranty questions, please contact the manufacturer:
Phone: 828-251-0090

Reviewers gave this product an overall rating of 4.5 out of 5 stars. (2 ratings)
Submitted November 21, 2013 by Bob H in San Francisco, CA

"Memories and Dreams"

Overall: 4.5 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
In early 70's, my older sister took me to meet a friend of hers, a guy whose living room contained more than a couple synthesizers. It was a dazzling experience, though the memory faded over time. I was just a little too young for what was being shown to me. Nearly 40 years later, I'm looking at a video on youtube - a demo of the unfortunately named Slim Phatty - when quite suddenly, the image of a hand turning a dial returns me to that memory and I realize that the synths in that guy's living room were Moogs. Since Moogs were always infinitely beyond my budget, I had put the idea of ever owning one right out of my head. Thanks to Moog Music and Zzounds, I now own my first Moog. And wow; it's a powerful, versatile and extraordinary instrument. Incredibly fun, too. The sounds and filters and - well, there's already tons of tech reviews and demos out there, and I suggest digesting as much of it as you can. Listen to the sounds and watch all the videos and choose wisely, grasshopper. It's still not cheap, but what price can be put on the resurrection of a cherished childhood memory, and the fulfillment of a dream? On a deeply personal level, I could not be more satisfied with the product, or the folks at Zzounds and their consistently friendly and professional service.

Musical Background:

Composer, sound designer, multi-instrumentalist, home-recording advocate and enthusiast

Musical Style:

Cross-genre electronic/electric/acoustic weirdness. Or something.
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