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Eurorack + Modular
Synthesizers + Keyboards
Pedals + Effects
Studio + Recording
Controllers + Sequencing
![Sequential Prophet 12 Hybrid Synthesizer Desktop Module [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/e/Sequential_Prophet_12_Module_U23-38891_01.webp "Sequential Prophet 12 Hybrid Synthesizer Desktop Module [USED]")
![4MS Spectral Multiband Resonator [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Spectral_Multiband_Resonator_U23-40120_01.webp "4MS Spectral Multiband Resonator [USED]")
![4MS Pod64X Desktop Eurorack Case - 3U / 64HP (Powered) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pod64X_Powered_U23-39380_01.webp "4MS Pod64X Desktop Eurorack Case - 3U / 64HP (Powered) [USED]")
![4MS Pod40X Desktop Eurorack Case - 3U / 40HP (Powered) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pod40X_Powered_U23-40113_01.webp "4MS Pod40X Desktop Eurorack Case - 3U / 40HP (Powered) [USED]")
![4MS Pod32 Desktop Eurorack Case - 3U / 32HP (Powered) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pod32_Powered_U23-40115_01.webp "4MS Pod32 Desktop Eurorack Case - 3U / 32HP (Powered) [USED]")
![4MS Pod104X Desktop Eurorack Case - 3U / 104HP (Powered) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pod104X_Powered_U23-39381_01.webp "4MS Pod104X Desktop Eurorack Case - 3U / 104HP (Powered) [USED]")
![4MS Pod32 Desktop Eurorack Case - 3U / 32HP (Powered) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pod_-_32HP_Powered_U23-39642_01.webp "4MS Pod32 Desktop Eurorack Case - 3U / 32HP (Powered) [USED]")
![4MS Ensemble Oscillator (Black) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Ensemble_Oscillator_Black_U23-39751_01.webp "4MS Ensemble Oscillator (Black) [USED]")
![Patching Panda BD-Z Kick Drum (Black) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/P/a/PatchingPanda_BD-Z_Kick_Drum_U23-39943_01.webp "Patching Panda BD-Z Kick Drum (Black) [USED]")
![Expressive E Touché MIDI + CV Touch Controller [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpressiveE_Touche_Touch_Controller_U23-39945_01.webp "Expressive E Touché MIDI + CV Touch Controller [USED]")
![4MS Shuffling Clock Multiplier (1.2) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Shuffling_Clock_Multiplier___U23-40054_01.webp "4MS Shuffling Clock Multiplier (1.2) [USED]")
![4MS Pod104X Desktop Eurorack Case - 3U / 104HP (Powered) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pod104X_Powered_U23-38863_01.webp "4MS Pod104X Desktop Eurorack Case - 3U / 104HP (Powered) [USED]")
![Shure 520DX "Green Bullet" Harmonica Microphone [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/h/Shure_520DX_Green_Bullet_Harmonica_Microphone_U23-38131_01.webp "Shure 520DX \"Green Bullet\" Harmonica Microphone [USED]")
![Sequential Take 5 Polyphonic Analog Keyboard Synthesizer [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/e/Sequential_Take_5_Analog_Polysynth_U23-39343_01.webp "Sequential Take 5 Polyphonic Analog Keyboard Synthesizer [USED]")
![Sequential Prophet Rev2 8-Voice Analog Keyboard Synthesizer [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/e/Sequential_Prophet_Rev2_8-Voice_Keyboard_U23-39519_01.webp "Sequential Prophet Rev2 8-Voice Analog Keyboard Synthesizer [USED]")
![API 505-DI 500-Series Direct Input [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/P/API_505_DI_500-Series_DI_U23-39071_01_1.webp "API 505-DI 500-Series Direct Input [USED]")
![Patching Panda Etna Triple Analog Morphing Filter (Black) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/P/a/PatchingPanda_Etna_Morphing_Filter_U23-39209_01.webp "Patching Panda Etna Triple Analog Morphing Filter (Black) [USED]")
![API 505-DI 500-Series Direct Input [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/P/API_505_DI_500-Series_DI_U23-39072_01.webp "API 505-DI 500-Series Direct Input [USED]")
![DigiTech VHM5 Vocalist Harmony Processor [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/i/DigiTech_VHM5_U23-38633_01.webp "DigiTech VHM5 Vocalist Harmony Processor [USED]")
![API 505-DI Direct Input [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/P/API_505-DI_Direct_Input_U23-39428_01.webp "API 505-DI Direct Input [USED]")
6hp USED
![4MS WAV Recorder [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_WAV_Recorder_U23-39365_01.webp "4MS WAV Recorder [USED]")
$229.00
In stock
![4MS Listen Up Stereo I/O [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Listen_Up_U23-39370_01.webp "4MS Listen Up Stereo I/O [USED]")
![4MS Listen IO Input / Output Amplifier [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Listen_IO_U23-39368_01.webp "4MS Listen IO Input / Output Amplifier [USED]")
![4MS Listen Four Quarters Mixer / Output [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Listen_Four_Quarters_U23-39364_01.webp "4MS Listen Four Quarters Mixer / Output [USED]")
![DigiTech Studio Vocalist Rackmount Vocal Harmony Processor [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/i/DigiTech_Studio_Vocalist_U23-39277_01.webp "DigiTech Studio Vocalist Rackmount Vocal Harmony Processor [USED]")
18hp USED
![4MS Tapographic Delay [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Tapographic_Delay_U23-38979_01.webp "4MS Tapographic Delay [USED]")
$349.00
In stock
![4MS Rotating Clock Divider [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Rotating_Clock_Divider_U23-38785_01.webp "4MS Rotating Clock Divider [USED]")
![4MS Spherical Wavetable Navigator (SWN) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Spherical_Wavetable_Navigator_U23-38649_01.webp "4MS Spherical Wavetable Navigator (SWN) [USED]")
![4MS Pod20 Desktop Eurorack Case - 3U / 20HP (Powered) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pod_-_20HP_Powered_U23-39319_01.webp "4MS Pod20 Desktop Eurorack Case - 3U / 20HP (Powered) [USED]")
![4MS Listen IO Input / Output Amplifier [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Listen_IO_U23-39222_01.webp "4MS Listen IO Input / Output Amplifier [USED]")
![4MS Dual EnvVCA Dual Envelope Generator + VCA [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Dual_EnvVCA_U23-38977_01.webp "4MS Dual EnvVCA Dual Envelope Generator + VCA [USED]")
![4MS Pod40X Desktop Eurorack Case - 3U / 40HP (Unpowered) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pod40X_Unpowered_U23-39316_01_2.webp "4MS Pod40X Desktop Eurorack Case - 3U / 40HP (Unpowered) [USED]")
![4MS Pod40X Desktop Eurorack Case - 3U / 40HP (Unpowered) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pod40X_Unpowered_U23-39317_01_1.webp "4MS Pod40X Desktop Eurorack Case - 3U / 40HP (Unpowered) [USED]")
![Shure SM7B Dynamic Vocal Microphone [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/h/Shure_SM7B_Cardioid_Dynamic_Vocal_Microphone_U23-37515_01.webp "Shure SM7B Dynamic Vocal Microphone [USED]")
![Expressive E Osmose 61 Keyboard Synthesizer + MPE MIDI Controller [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpressiveE_Osmose_61_U23-39264_01.webp "Expressive E Osmose 61 Keyboard Synthesizer + MPE MIDI Controller [USED]")
![DigiTech RDS 3.6 Digital Delay Rack Processor [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/i/DigiTech_RDS_36_Digital_Delay_U23-28033_01.webp "DigiTech RDS 3.6 Digital Delay Rack Processor [USED]")
![DigiTech HammerOn Pitch Shifter Pedal [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/i/DigiTech_HammerOn_Pitch_Shifter_U23-39002_01.webp "DigiTech HammerOn Pitch Shifter Pedal [USED]")
![4MS Pod40X Desktop Eurorack Case - 3U / 40HP (Unpowered) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pod40X_Unpowered_U23-39318_01.webp "4MS Pod40X Desktop Eurorack Case - 3U / 40HP (Unpowered) [USED]")
![4MS Pingable Envelope Generator [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Pingable_Envelope_Generator_U23-39167_01.webp "4MS Pingable Envelope Generator [USED]")
![4MS Noise Swash (Eurorack) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Noise_Swash_U23-39143_01.webp "4MS Noise Swash (Eurorack) [USED]")
![4MS Listen Four Quarters Mixer / Output [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Listen_Four_Quarters_U23-39089_01.webp "4MS Listen Four Quarters Mixer / Output [USED]")
![4MS Listen Four Quarters Mixer / Output [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Listen_Four_Quarters_U23-38574_01.webp "4MS Listen Four Quarters Mixer / Output [USED]")
16hp USED
![4MS Atoner (Eurorack) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Atoner_U23-39145_01.webp "4MS Atoner (Eurorack) [USED]")
$219.00
In stock
![DigiTech Vocalist Workstation EX Vocal Harmony Processor [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/i/DigiTech_Vocalist_Workstation_EX_U23-29436_01.webp "DigiTech Vocalist Workstation EX Vocal Harmony Processor [USED]")
![DigiTech Vocalist Performer Vocal Harmony Processor [VINTAGE]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/i/DigiTech_Vocalist_Performer_U23-37117_01.webp "DigiTech Vocalist Performer Vocal Harmony Processor [VINTAGE]")
![Expressive E Osmose 61 Keyboard Synthesizer + MPE MIDI Controller [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpressiveE_Osmose_61_U23-38149_01.webp "Expressive E Osmose 61 Keyboard Synthesizer + MPE MIDI Controller [USED]")
![4MS Ensemble Oscillator Additive Sound Source [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/4/M/4MS_Ensemble_Oscillator_White_U23-38468_01.webp "4MS Ensemble Oscillator Additive Sound Source [USED]")
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High quality used electronic music gear—100% guaranteed. If you're looking for a great deal on a lightly used synth, electronic instruments, or other music equipment, you're in the right place.
Our selection of used gear runs the gamut: rare Eurorack modules, boutique effects pedals, vintage synthesizers and drum machines, professional studio gear, and much more. All of our used and vintage gear is 100% guaranteed to be fully functional, so you can buy with confidence. Plus, we offer financing and the option for free shipping on most orders.
We're constantly updating our used inventory—so keep your eyes here to see the latest additions!
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