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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]")
![Random Source Haible TAU Phaser [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/R/a/RandomSource_Haible_TAU_Phaser_U23-40130_01.webp "Random Source Haible TAU Phaser [USED]")
![XAOC Devices Zadar Quad Envelope [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Zadar_U23-39981_01.webp "XAOC Devices Zadar Quad Envelope [USED]")
![XAOC Devices Zadar Quad Envelope [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Zadar_U23-39718_01.webp "XAOC Devices Zadar Quad Envelope [USED]")
![XAOC Devices Zadar Replacement Panel (Black) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Zadar_Replacement_Panel_U23-39995_01.webp "XAOC Devices Zadar Replacement Panel (Black) [USED]")
![XAOC Devices Sopot Triple Summing Mixer [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Sopot_Mixer_U23-39820_01.webp "XAOC Devices Sopot Triple Summing Mixer [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]")
![XAOC Devices Zagrzeb Stereo Filter [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Zagrzeb_Stereo_Filter_U23-39576_01.webp "XAOC Devices Zagrzeb Stereo Filter [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]")
![XAOC Devices Tallin Dual Discrete Core VCA [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Tallin_U23-39023_01.webp "XAOC Devices Tallin Dual Discrete Core VCA [USED]")
![XAOC Devices Poti V1 Expander for Batumi V1 [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Poti_Model_1974_Breakout_U23-38031_01.webp "XAOC Devices Poti V1 Expander for Batumi V1 [USED]")
![XAOC Devices Poti V1 Expander for Batumi V1 [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Poti_Model_1974_Breakout_U23-38034_01.webp "XAOC Devices Poti V1 Expander for Batumi V1 [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]")
![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]")
![Random Source Wave Multipliers + Resonant Equalizer 4x4 (Serge 4U) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/R/a/RandomSource_Serge_Wave_Mulitpliers_VCM_U23-39186_01.webp "Random Source Wave Multipliers + Resonant Equalizer 4x4 (Serge 4U) [USED]")
![Random Source Divide and Compare 4x4 (Serge 4U) [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/R/a/RandomSource_Serge_Divide_and_Compare_4U_U23-39163_01.webp "Random Source Divide and Compare 4x4 (Serge 4U) [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]")
![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]")
![XAOC Devices Poti V1 Expander for Batumi V1 [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Poti_Model_1974_Breakout_U23-37063_01.webp "XAOC Devices Poti V1 Expander for Batumi V1 [USED]")
![XAOC Devices Sofia Waveshaping Analog Oscillator [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Sofia_Analog_Oscillator_U23-38418_01_6.webp "XAOC Devices Sofia Waveshaping Analog Oscillator [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_U23-37255_01_4.webp "Sequential Prophet Rev2 8-Voice Analog Keyboard Synthesizer [USED]")
![XAOC Devices Koszalin Stereo VC Frequency Shifter [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Koszalin_Stereo_Frequency_Shifter_U23-37721_01.webp "XAOC Devices Koszalin Stereo VC Frequency Shifter [USED]")
![XAOC Devices Belgrad Dual Peak Filter [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Belgrad_Dual_Peak_Filter_U23-37308_01.webp "XAOC Devices Belgrad Dual Peak Filter [USED]")
![XAOC Devices Batumi V1 Quad LFO [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Batumi_Model_1974_Quad_LFO_U23-37061_01.webp "XAOC Devices Batumi V1 Quad LFO [USED]")
![XAOC Devices Sofia Waveshaping Analog Oscillator [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Sofia_Analog_Oscillator_U23-37860_01.webp "XAOC Devices Sofia Waveshaping Analog Oscillator [USED]")
![XAOC Devices Drezno 1989 Binary Conversion Komputor [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Drezno_1989_Binary_Conversion_Komputer_U23-37832_01.webp "XAOC Devices Drezno 1989 Binary Conversion Komputor [USED]")
![XAOC Devices Batumi V1 Quad LFO [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Batumi_Model_1974_Quad_LFO_U23-37811_01.webp "XAOC Devices Batumi V1 Quad LFO [USED]")
![XAOC Devices Poczdam Leibniz Device Komutator [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Poczdam_Leibniz_Subsystem_Binary_Data_Router_U23-37272_01.webp "XAOC Devices Poczdam Leibniz Device Komutator [USED]")
![XAOC Devices Poti V1 Expander for Batumi V1 [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Poti_Model_1974_Breakout_U23-36856_01.webp "XAOC Devices Poti V1 Expander for Batumi V1 [USED]")
![Sequential Prophet-5 Polyphonic Analog Synthesizer Desktop Module [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/e/Sequential_Prophet-5_Desktop_Module_U23-36708_01.webp "Sequential Prophet-5 Polyphonic Analog Synthesizer Desktop Module [USED]")
![XAOC Devices Batumi V1 Quad LFO [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Batumi_Model_1974_Quad_LFO_U23-36736_01.webp "XAOC Devices Batumi V1 Quad LFO [USED]")
![XAOC Devices Oradea Quadruple Voltage Controlled Resonator [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Oradea_VC_Quad_VC_Resonator_U23-36290_01.webp "XAOC Devices Oradea Quadruple Voltage Controlled Resonator [USED]")
![XAOC Devices Arad Resonator Commander [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Arad_Resonator_Commander_U23-36289_01.webp "XAOC Devices Arad Resonator Commander [USED]")
![Sequential Pro 3 Hybrid Keyboard Synthesizer [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/e/Sequential_Pro_3_U23-36120_01.webp "Sequential Pro 3 Hybrid Keyboard Synthesizer [USED]")
![XAOC Devices Moskwa Rotosequencer - MKI [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Moskwa_U23-35349_01.webp "XAOC Devices Moskwa Rotosequencer - MKI [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_U23-34996_01.webp "Sequential Take 5 Polyphonic Analog Keyboard Synthesizer [USED]")
![XAOC Devices Sewastopol V1 Audio Port & Voltage Extractor [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Sewastopol_U23-31803_01.webp "XAOC Devices Sewastopol V1 Audio Port & Voltage Extractor [USED]")
![XAOC Devices Sewastopol II Audio Port and Voltage Extractor [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Sewastopol_II_U23-30417_01.webp "XAOC Devices Sewastopol II Audio Port and Voltage Extractor [USED]")
![XAOC Devices Poti V1 Expander for Batumi V1 [USED]](https://www.perfectcircuit.mom/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/X/A/XAOCDevices_Poti_Model_1974_Breakout_U23-28051_01.webp "XAOC Devices Poti V1 Expander for Batumi V1 [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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