PAiA Fatman

PAiA Fatman Image

The PAiA FatMan is unlike other analog synths because it is based around one main concept - you build it yourself (DIY). So in addition to offering quite nice analog sounds, it gives you a chance to delve into synthesizer construction, and this can really help you learn more about how these things work. It can be built in about a day. Although it was first released in 1992, it is a true analog instrument and is still currently available and manufactured.

It is a small monophonic analog synth with two oscillators, 18 rotary knobs, 3 switches and NO keyboard. There is a low-pass resonant A(S)R filter, an ADSR VCA and portamento. It is quite affordable since you have to build it yourself. The kit comes with most of the components and detailed instructions so that anyone with a little soldering experience could put one together successfully.

PAiA Fatman Image

There are two versions, a rack-mount or a desktop module. All of the components and specifications are the same for both. It's capable of producing some pretty quirky analog sounds and basslines but the number of different sounds you will get out of this synthesizer is limited. There is MIDI on-board, albeit very simple and basic. The FatMan uses control voltages to operate so the MIDI is really a MIDI-to-CV converter. However, it does not transmit MIDI info from it's knobs, though it's CV outputs can be used to control other old analog gear you may have around. Still this is one basic synth, with no effects, no arpeggiator or sequencer and no patch memory storage. But the DIY aspect is novel and the finished product is well-worth the effort!

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The link above will take you to an eBay search for this synth to see active listings with more images, specs and information. If you don't find it there, try looking in our forum marketplace. Our marketplace gets thousands of visits every week so make sure to check back often if you want to buy or sell a synth.

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Are you looking to buy or sell a PAiA Fatman? Post an ad in Gear For Sale or a request in Gear Wanted. For spare parts and repair services check out Gear Services & Other Goods. Our forums also has a Buyer’s Guide section where you can ask for advice on buying synthesizers.

7 Visitor comments
Matana Teknik
January 30, 2014 @ 10:42 am
FYI: the onboard midi to cv converter is a midi to Hz/Oct cv converter not 1V/Oct.

Very handy to control other Hz/Oct synths like the Korg MS10, MS20 and ofcourse the new MS20i
August 6, 2012 @ 2:23 am
i bought an assembled one of these used. it sounds surprisingly good...and the built in midi/cv convertor is such a bonus!
March 28, 2012 @ 1:22 pm
never got mine to recognize that a midi controller was connected to it. disappointed myself. super fun to build though.
March 16, 2012 @ 5:45 pm
I just completed my Fatman build and I love it! It has a great sound and is very tweakable. The perfect first synth.
December 1, 2011 @ 11:25 am
It can also be heard here:

The drums are korg kr-33 but the rest is all Paia Fatman.
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  • Check Price
  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - Monophonic
  • Oscillators - 2 with sawtooth waveforms
  • LFO - None
  • Filter - 1 low-pass resonant A(S)R 12dB/Oct
  • VCA - ADSR
  • Keyboard - None
  • Effects - None
  • Arpeg/Seq - None
  • Memory - None
  • Control - MIDI, CV Out (V/Hz) compatible w/ Korg, Yamaha and PAiA gear (velocity/pitch/gate)
  • Date Produced - 1992 - present
  • Resources & Credits
  • Images from

    Thanks to Michael Potvin and Thomas Kahn for providing info.

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