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Eurorack + Modular
Synthesizers + Keyboards
Pedals + Effects
Studio + Recording
Controllers + Sequencing
![Doepfer A-190-4 USB/MIDI-to-CV/Gate Interface [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-190-4_USB_MIDI-to-CV_Gate_Interface_U23-36975_01.webp "Doepfer A-190-4 USB/MIDI-to-CV/Gate Interface [USED]")
![Doepfer A-190-3V USB / MIDI-to-CV / Gate Interface (Vintage Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-190-3V_USB_MIDI-to-CV_Interface_-_Vintage_Edition_U23-36995_01.webp "Doepfer A-190-3V USB / MIDI-to-CV / Gate Interface (Vintage Edition) [USED]")
![Doepfer A-184-1 Ring Modulator / S&H / T&H / Slew Limiter [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-184-1_Ring_Modulator___S_H___T_H___Slew_Limiter_U23-37099_01.webp "Doepfer A-184-1 Ring Modulator / S&H / T&H / Slew Limiter [USED]")
![Doepfer A-178 Theremin Control Voltage Source [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-178_Theremin_CV_Source_-_Standard_Edition_U23-37226_01.webp "Doepfer A-178 Theremin Control Voltage Source [USED]")
![Doepfer A-156 Dual Quantizer [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-156_Dual_Quantizer_-_Standard_Edition_U23-37098_01.webp "Doepfer A-156 Dual Quantizer [USED]")
![Doepfer A-145-4V Quad LFO (Vintage Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-145-4v_Quad_LFO_Slim_Line_-_Vintage_Edition_U23-36987_01.webp "Doepfer A-145-4V Quad LFO (Vintage Edition) [USED]")
![Doepfer A-138sV Mini Stereo Mixer (Vintage Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-138sv_Mini_Stereo_Mixer_-_Vintage_Edition_U23-37221_01.webp "Doepfer A-138sV Mini Stereo Mixer (Vintage Edition) [USED]")
![Doepfer A-124SE VCF5 Wasp Filter (Special Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-124SE_VCF5_Wasp_Filter_Special_Edition_U23-36962_01.webp "Doepfer A-124SE VCF5 Wasp Filter (Special Edition) [USED]")
![Doepfer A-120V VCF1 24dB Low Pass Filter (Vintage Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-120v_VCF1_24dB_Low_Pass_Filter_-_Vintage_Edition_U23-37234_01.webp "Doepfer A-120V VCF1 24dB Low Pass Filter (Vintage Edition) [USED]")
![Doepfer A-119 External Input / Envelope Follower [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-119_External_Input___Envelope_Follower_-_Standard_Edition_U23-36976_01.webp "Doepfer A-119 External Input / Envelope Follower [USED]")
![Doepfer A-106-1 X-Treme Filter [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-106-1_X-Treme_Filter_U23-36960_01.webp "Doepfer A-106-1 X-Treme Filter [USED]")
![Doepfer A-106-1 X-Treme Filter [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-106-1_X-Treme_Filter_U23-36961_01.webp "Doepfer A-106-1 X-Treme Filter [USED]")
![Doepfer A-172 Maximum / Minimum Selector [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-172_Maximum___Minimum_Selector_U23-36884_01.webp "Doepfer A-172 Maximum / Minimum Selector [USED]")
![Doepfer A-166 Dual Logic [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-166_Dual_Logic_U23-36883_01.webp "Doepfer A-166 Dual Logic [USED]")
![Doepfer A-160-5 Voltage Controlled Clock Multiplier / Ratcheting Controller [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-160-5_VC_Clock_Multiplier_-_Standard_Edition_U23-36814_01.webp "Doepfer A-160-5 Voltage Controlled Clock Multiplier / Ratcheting Controller [USED]")
![Doepfer A-138sV Mini Stereo Mixer (Vintage Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-138sv_Mini_Stereo_Mixer_-_Vintage_Edition_U23-36875_01.webp "Doepfer A-138sV Mini Stereo Mixer (Vintage Edition) [USED]")
![Doepfer A-124SE VCF5 Wasp Filter (Special Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-124SE_VCF5_Wasp_Filter_Special_Edition_U23-36897_01.webp "Doepfer A-124SE VCF5 Wasp Filter (Special Edition) [USED]")
![Doepfer A-130-8 Octal Linear VCA [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-130-8_Octal_Linear_VCA_U23-36626_01_1.webp "Doepfer A-130-8 Octal Linear VCA [USED]")
![Sequential Prophet-5 Polyphonic Analog Synthesizer Desktop Module [USED]](https://www.perfectcircuit.com/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]")
![Doepfer A-105-2 24dB SSI Low Pass Filter Standard Edition [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-105-2_24_dB_Low_Pass_SSI-Type_Filter_U23-36628_01.webp "Doepfer A-105-2 24dB SSI Low Pass Filter Standard Edition [USED]")
![Flame 4VOX Quad Polyphonic Wavetable VCO [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/F/l/Flame_4VOX_Quad_Polyphonic_Wavetable_VCO_U23-36565_01.webp "Flame 4VOX Quad Polyphonic Wavetable VCO [USED]")
![Doepfer A-142-4 Quad Decay Envelope Generator [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-142-4_Quad_Decay_U23-36454_01.webp "Doepfer A-142-4 Quad Decay Envelope Generator [USED]")
![Doepfer A-130-8 Octal Linear VCA [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-130-8_Octal_Linear_VCA_U23-36730_01.webp "Doepfer A-130-8 Octal Linear VCA [USED]")
![Doepfer A-118 Noise + Random Voltage [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-118_Noise___Random_Voltage_-_Standard_Edition_U23-36556_01.webp "Doepfer A-118 Noise + Random Voltage [USED]")
![Sequential Pro 3 Hybrid Keyboard Synthesizer [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/e/Sequential_Pro_3_U23-36120_01.webp "Sequential Pro 3 Hybrid Keyboard Synthesizer [USED]")
![Doepfer A-198-2 Module + Ribbon Controller [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-198-2_Ribbon_Controller_U23-36325_01.webp "Doepfer A-198-2 Module + Ribbon Controller [USED]")
![Doepfer A-138nV Slim Line Mixer (Vintage Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-138nV_Mixer_Slim_Line_-_Vintage_Edition_U23-36383_01.webp "Doepfer A-138nV Slim Line Mixer (Vintage Edition) [USED]")
![Doepfer A-100 LCBV Low Cost Base Eurorack Case - 6U / 84HP (Vintage Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-100LCBV_Low_Cost_Base_-_6U_Black_w__IEC_Cable_U23-36482_01.webp "Doepfer A-100 LCBV Low Cost Base Eurorack Case - 6U / 84HP (Vintage Edition) [USED]")
![Doepfer A-100 LC9V Low Cost Eurorack Case - 9U / 84HP (Vintage Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-100LC9V_Low_Cost_Case_9_HE_PSU3_Vintage_Edition_U23-35962_01.webp "Doepfer A-100 LC9V Low Cost Eurorack Case - 9U / 84HP (Vintage Edition) [USED]")
![Doepfer A-100 LC9V Low Cost Eurorack Case - 9U / 84HP (Vintage Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-100LC9V_Low_Cost_Case_-_9U_Black_w__IEC_Cable_U23-36486_01.webp "Doepfer A-100 LC9V Low Cost Eurorack Case - 9U / 84HP (Vintage Edition) [USED]")
![Random Source Haible Living VCOs [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/R/a/RandomSource_Haible_Living_VCOs_U23-36235_01.webp "Random Source Haible Living VCOs [USED]")
![Flame QSLIDER Controller [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/F/l/Flame_QSlider_Silver_U23-36148_01.webp "Flame QSLIDER Controller [USED]")
![Flame Chord Machine 2 Quantizer / Arpeggiator [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/F/l/Flame_Chord_Machine_2_Silver_U23-36159_01.webp "Flame Chord Machine 2 Quantizer / Arpeggiator [USED]")
![Doepfer A-138n Narrow Mixer (Slim Line) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-138n_Mixer_Slim_Line_-_Standard_Edition_U23-35831_01.webp "Doepfer A-138n Narrow Mixer (Slim Line) [USED]")
![Doepfer A-100 G6 Rackmountable Eurorack Case - 6U / 84HP [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-100_G6_Rackmountable_Case_-_6U_w__IEC_Cable_U23-35785_01_2.webp "Doepfer A-100 G6 Rackmountable Eurorack Case - 6U / 84HP [USED]")
![Random Source Serge Smooth & Stepped Generator (SSG) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/R/a/RandomSource_Serge_Smooth___Stepped_Generator_SSG_U23-35882_01.webp "Random Source Serge Smooth & Stepped Generator (SSG) [USED]")
![Flame Clockwork Shift Clock Modulator [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/F/l/Flame_Clockwork_U23-35628_01.webp "Flame Clockwork Shift Clock Modulator [USED]")
![Doepfer A-190-3 USB / MIDI-to-CV / Gate Interface [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-190-3_USB_MIDI-to-CV_Interface_-_Standard_Edition_U23-35773_01.webp "Doepfer A-190-3 USB / MIDI-to-CV / Gate Interface [USED]")
![Doepfer A-184-1 Ring Modulator / S&H / T&H / Slew Limiter [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-184-1_Ring_Modulator___S_H___T_H___Slew_Limiter_U23-35732_01.webp "Doepfer A-184-1 Ring Modulator / S&H / T&H / Slew Limiter [USED]")
![Doepfer A-161 Clock / Trigger Sequencer [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-161_Clock___Trigger_Sequencer_U23-35623_01.webp "Doepfer A-161 Clock / Trigger Sequencer [USED]")
![Doepfer A-160-1 Clock + Trigger Divider [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-160-1_Clock___Trigger_Divider_U23-35622_01.webp "Doepfer A-160-1 Clock + Trigger Divider [USED]")
![Doepfer A-137-2 Wave Multiplier II [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-137-2_Wave_Multiplier_II_U23-35626_01.webp "Doepfer A-137-2 Wave Multiplier II [USED]")
![Doepfer A-137-2 Wave Multiplier II [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-137-2_Wave_Multiplier_II_U23-35627_01.webp "Doepfer A-137-2 Wave Multiplier II [USED]")
![Doepfer A-137-1 Wave Multiplier I [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-137-1_Wave_Multiplier_I_U23-35625_01.webp "Doepfer A-137-1 Wave Multiplier I [USED]")
![Doepfer A-118 Noise + Random Voltage [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-118_Noise___Random_Voltage_-_Standard_Edition_U23-35621_01.webp "Doepfer A-118 Noise + Random Voltage [USED]")
![Doepfer A-112V Sampler (Vintage Edition) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/o/Doepfer_A-112V_Sampler_-_Vintage_Edition_U23-33130_01.webp "Doepfer A-112V Sampler (Vintage Edition) [USED]")
![Sequential Take 5 Polyphonic Analog Keyboard Synthesizer [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/e/Sequential_Take_5_Analog_Polysynth_U23-34996_01.webp "Sequential Take 5 Polyphonic Analog Keyboard Synthesizer [USED]")
![Flame FX-16 Effects Voltage Controlled FX Processor [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/F/l/Flame_FX-16_Effects_U23-35309_01.webp "Flame FX-16 Effects Voltage Controlled FX Processor [USED]")
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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