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![A-114 Ring Mod. [used]](//cdn.shopify.com/s/files/1/0205/5116/products/a114s_1024x1024.jpg?v=1420277767)
A-114 Ring Mod. [used]
Doepfer
$85.00
-
![A-118 Noise + Random Volt. [used]](//cdn.shopify.com/s/files/1/0205/5116/products/a118s_1024x1024.jpg?v=1420273293)
A-118 Noise + Random Volt. [used]
Doepfer
$80.00
-
![A-119 Ext. In - External Input / Envelope Follower [used]](//cdn.shopify.com/s/files/1/0205/5116/products/a119s_1024x1024.jpg?v=1420278128)
A-119 Ext. In - External Input / Envelope Follower [used]
Doepfer
$85.00
Sold Out -
![A-120 VCF1 - Low Pass Filter [used]](//cdn.shopify.com/s/files/1/0205/5116/products/doepfer_1024x1024.jpg?v=1420278790)
A-120 VCF1 - Low Pass Filter [used]
Doepfer
$110.00
Sold Out -
![A-121 VCF 2 - Multimode Filter [used]](//cdn.shopify.com/s/files/1/0205/5116/products/a121s_1024x1024.jpg?v=1420277957)
A-121 VCF 2 - Multimode Filter [used]
Doepfer
$170.00
Sold Out -
![A-170 SL Dual Slew Limiter [used]](//cdn.shopify.com/s/files/1/0205/5116/products/a170s_1024x1024.jpg?v=1420273089)
A-170 SL Dual Slew Limiter [used]
Doepfer
$70.00
Sold Out -
![A-190 MCVS [used]](//cdn.shopify.com/s/files/1/0205/5116/products/a190_1024x1024.jpg?v=1420272556)
A-190 MCVS [used]
Doepfer
$195.00
-
Anvilope
Animodule
$95.00
Sold Out -
Atari Punk Console
Synthrotek
$95.00
-
![Audio Interface [used]](//cdn.shopify.com/s/files/1/0205/5116/products/Audio-Interface-WEB_1024x1024.gif?v=1428630809)
Audio Interface [used]
Intellijel
$210.00
Sold Out -
BMIX
Super Synthesis
$95.00
Sold Out -
Braids
Mutable Instruments
$399.00
Sold Out -
![Brains [used]](//cdn.shopify.com/s/files/1/0205/5116/products/brains_600_1024x1024.jpg?v=1420281173)
Brains [used]
Make Noise
$95.00
Sold Out -
Clouds
Mutable Instruments
$359.00
Sold Out -
![Cobalt Smelter Lab [used]](//cdn.shopify.com/s/files/1/0205/5116/products/BL_CSL_1024x1024.jpg?v=1420856276)
Cobalt Smelter Lab [used]
Blue Lantern
$325.00
-
CVP-1
Low-Gain Electronics
$199.00
Sold Out -
cvWS
Bubblesound
$139.00
-
cv_looper
Nexus Instruments
$270.00
Sold Out -
DIRT Filter
Synthrotek
$99.00
Sold Out -
dlADSR
Bubblesound
$250.00
-
Dreamboat
Snazzy FX
$225.00
-
Dronebank
Snazzy FX
$225.00
-
Dynamic Destiny
Macro Machines
$185.00
-
ECHO
Synthrotek
$99.00
-
Elements
Mutable Instruments
$539.00
Sold Out -
![ES-40 [used]](//cdn.shopify.com/s/files/1/0205/5116/products/ES-40_image_1024x1024.jpg?v=1400267073)
ES-40 [used]
Expert Sleepers
$115.00
-
![ESX-8CV [used]](//cdn.shopify.com/s/files/1/0205/5116/products/esx-8cv_1024x1024.jpg?v=1400302438)
ESX-8CV [used]
Expert Sleepers
$179.00
-
![Graphic Sequencer [used]](//cdn.shopify.com/s/files/1/0205/5116/products/stg_graphic_sequencer_1024x1024.jpg?v=1420279612)
Graphic Sequencer [used]
Suit and Tie Guy
$230.00
-
Grendel Formant Filter
Rare Waves
$229.00
-
Kala Goañv
TouellSkouarn
$189.00
-
Lil' Monster VCO
Animodule
$199.00
-
Line_Amp
Animodule
$90.00
-
LvL+rm
Bubblesound
$110.00
-
m11
Trogotronic
$75.00
-
m277
Trogotronic
$425.00
-
m669
Trogotronic
$325.00
-
![Malgrorithm v.1 [used]](//cdn.shopify.com/s/files/1/0205/5116/products/2012finalpanel_1024x1024.jpg?v=1420280505)
Malgrorithm v.1 [used]
The Harvestman
$220.00
-
Mattson SQ816
Division 6
$970.00
-
Moskwa
Xaoc Devices
$340.00
Sold Out -
Mother-32
Moog Music Inc.
$599.00
Sold Out -
MS-4
Alyseum
$305.00
-
MS-812
Alyseum
$420.00
-
MS-Matrix
Alyseum
$450.00
-
Multifilter
Toppobrillo
$239.00
-
Mutamix
Intellijel
$250.00
-
Mutant Bassdrum
Hexinverter.net
$229.00
-
Mutant Clap
Hexinverter.net
$249.00
-
Mutant Hihats
Hexinverter.net
$229.00
-
Mutant Hot Glue
Hexinverter.net
$399.00
-
Mutant Machine
Hexinverter.net
$599.00
- SEE ALL MODULES
![A-114 Ring Mod. [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/a114s_1024x1024.jpg?v=1420277767)
![A-118 Noise + Random Volt. [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/a118s_1024x1024.jpg?v=1420273293)
![A-119 Ext. In - External Input / Envelope Follower [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/a119s_1024x1024.jpg?v=1420278128)
![A-120 VCF1 - Low Pass Filter [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/doepfer_1024x1024.jpg?v=1420278790)
![A-121 VCF 2 - Multimode Filter [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/a121s_1024x1024.jpg?v=1420277957)
![A-170 SL Dual Slew Limiter [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/a170s_1024x1024.jpg?v=1420273089)
![A-190 MCVS [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/a190_1024x1024.jpg?v=1420272556)
![Audio Interface [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/Audio-Interface-WEB_1024x1024.gif?v=1428630809)
![Brains [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/brains_600_1024x1024.jpg?v=1420281173)
![Cobalt Smelter Lab [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/BL_CSL_1024x1024.jpg?v=1420856276)
![ES-40 [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/ES-40_image_1024x1024.jpg?v=1400267073)
![ESX-8CV [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/esx-8cv_1024x1024.jpg?v=1400302438)
![Graphic Sequencer [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/stg_graphic_sequencer_1024x1024.jpg?v=1420279612)
![Malgrorithm v.1 [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/2012finalpanel_1024x1024.jpg?v=1420280505)
-
Clouds
Mutable Instruments
$359.00
Sold Out -
Yarns
Mutable Instruments
$359.00
-
Vert
Mystic Circuits
$165.00
-
cv_looper
Nexus Instruments
$270.00
Sold Out -
Mother-32
Moog Music Inc.
$599.00
Sold Out -
m277
Trogotronic
$425.00
-
m11
Trogotronic
$75.00
-
m669
Trogotronic
$325.00
-
Mutant Machine
Hexinverter.net
$599.00
-
Mutant Clap
Hexinverter.net
$249.00
-
Mutant Hihats
Hexinverter.net
$229.00
-
Mutant Bassdrum
Hexinverter.net
$229.00
-
Mutant Hot Glue
Hexinverter.net
$399.00
-
Elements
Mutable Instruments
$539.00
Sold Out -
Braids
Mutable Instruments
$399.00
Sold Out -
Spectral Multiband Resonator
4ms
$475.00
Sold Out -
Sequencer 1
Audio Damage
$699.00
-
Mutamix
Intellijel
$250.00
-
Rotating Clock Divider
4ms
$179.00
-
Rotating Clock Divider Breakout
4ms
$95.00
-
MS-Matrix
Alyseum
$450.00
-
Dreamboat
Snazzy FX
$225.00
-
Line_Amp
Animodule
$90.00
-
Orgone Accumulator
Neutron Sound
$360.00
Sold Out -
Skipmin
West Oakland Music Systems
$150.00
Sold Out -
Kala Goañv
TouellSkouarn
$189.00
-
Strakal Brulu {re greñv eo} Red/Alu
TouellSkouarn
$299.00
-
Row Power 40
4ms
$155.00
-
CVP-1
Low-Gain Electronics
$199.00
Sold Out -
SubMix6
Low-Gain Electronics
$199.00
-
Tidal Wave
Snazzy FX
$465.00
-
Polivoks VCG MKII
The Harvestman
$295.00
-
Polivoks Lider Suboctave
The Harvestman
$160.00
-
Polivoks ADSR/VCA
The Harvestman
$285.00
-
Polivoks Modulator
The Harvestman
$160.00
-
Polivoks VCF
The Harvestman
$200.00
Sold Out -
![Zeroscillator [used]](//cdn.shopify.com/s/files/1/0205/5116/products/IOMT_CZO_1024x1024.jpg?v=1429646293)
Zeroscillator [used]
Cyndustries
$850.00
-
Serge Resonant Equalizer MKII
Assembled kit (tested)
$450.00
-
Dronebank
Snazzy FX
$225.00
-
Ripples
Mutable Instruments
$199.00
Sold Out -
Storage Strip
Macro Machines
$195.00
-
Dynamic Destiny
Macro Machines
$185.00
-
Cobalt Smelter Lab [used]
Blue Lantern
$325.00
-
RF Nomad
Evaton Technologies
$176.00
-
Trigger Man V2
Delptronics
$195.00
Sold Out -
Thunderclap
Delptronics
$120.00
-
Anvilope
Animodule
$95.00
Sold Out -
Lil' Monster VCO
Animodule
$199.00
-
Ultra Random Analog
Steady State Fate
$299.00
Sold Out -
Quantum Rainbow 2
Steady State Fate
$139.00
Sold Out
![Zeroscillator [used]](http://cdn.shopify.com/s/files/1/0205/5116/products/IOMT_CZO_1024x1024.jpg?v=1429646293)
-
I/O Music Technology Modular Synthesizer Lecture & Demonstration
-
December 2014 Newsletter
-
Cyber Monday Sale Extended!
-
Black Friday through Cyber Monday Weekend Sale!
-
I/O @ Music Expo SF 2014
-
I/O Interactive Pop-up shop Thursday, October 23 - Nightlife @ California Academy of Sciences
-
The I/O Online Marketplace is Live!