From the Shure SM57 and SM7B to the Neumann TLM 103; from Focusrite's Scarlett series to the newest Universal Audio Apollo offering; from the top-of-the-line Sennheiser HD650s to the affordable Beyerdynamic DT 990 Pro headphones—having the right tools is often all you need for your entire studio workflow to come together. And the studio is the place where all of the rest of our work solidifies: carefully crafted sounds merge together to form powerful soundscapes, and the whole of one's musical vision becomes clear. For many, the studio and act of recording are part of every stage of the creative process, like a large instrument that can be used to craft entire worlds of sound.
Perfect Circuit strives to provide the finest tools for recording and studio work in all price ranges. Perhaps you're looking to get your home studio started with a solid affordable interface and monitors (Focusrite Scarlett 2i2 and Yamaha's HS5 or HS8, for instance?), or perhaps you're upgrading to the most recent Antelope offering—or perhaps you're looking to capture sound out in the field with a Zoom H6. Whether you have a humble bedroom setup or have racks and racks of boutique 500 Series gear—there's something here that will spark your creativity and make your workflow smoother.
Microphones, mixers, field recorders, studio monitors, audio interfaces, and rack processors—it's all here.
![MOTU 8M 8 CH Thunderbolt / USB Audio Interface [USED] MOTU 8M 8 CH Thunderbolt / USB Audio Interface [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/M/O/MOTU_8M_8_CH_Thunderbolt_USB_Audio_Interface_U23-38627_01.webp)
![Focusrite Scarlett 2i4 Audio Interface [USED] Focusrite Scarlett 2i4 Audio Interface [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/F/o/Focusrite_Scarlett_2i4_Audio_Interface_U23-39080_01.webp)
![Arturia MiniFuse 4 USB-C Audio Interface (Black) [USED] Arturia MiniFuse 4 USB-C Audio Interface (Black) [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/r/Arturia_MiniFuse_4_USB-C_Audio_Interface_Black_U23-39394_01.webp)
![Apogee A8MP 8-Channel Mic Preamp Card for Symphony I/O [USED] Apogee A8MP 8-Channel Mic Preamp Card for Symphony I/O [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/p/Apogee_A8MP_U23-39433_01.webp)
![Alesis RA-100 Reference Amplifier [USED] Alesis RA-100 Reference Amplifier [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/l/Alesis_RA-100_U23-38284_01.webp)
![API 505-DI Direct Input [USED] API 505-DI Direct Input [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/P/API_505-DI_Direct_Input_U23-39428_01.webp)
![Lewitt LCT-440 Large-Diaphragm Condenser Microphone [USED] Lewitt LCT-440 Large-Diaphragm Condenser Microphone [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/L/e/Lewitt_LCT-440_U23-39300_01_1.webp)
![dbx 560A 500 Series Compressor / Limiter [USED] dbx 560A 500 Series Compressor / Limiter [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/d/b/dbx_560A_500_Series_Compressor_Limiter_U23-39432_01.webp)
![Zoom F3 MultiTrack Recorder [USED] Zoom F3 MultiTrack Recorder [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/Z/o/Zoom_F3_MultiTrack_Recorder_with_32-bit_Float_U23-38958_01.webp)
![Topping A50 III Headphone Amplifier [USED] Topping A50 III Headphone Amplifier [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/T/o/Topping_A50_III_Headphone_Amplifier_U23-38505_01.webp)
![Solid State Logic SSL 2+ USB Audio Interface [USED] Solid State Logic SSL 2+ USB Audio Interface [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/o/SolidStateLogic_2__Audio_Interface_U23-38829_01.webp)
![Rockman Stereo Chorus/Delay Module [USED] Rockman Stereo Chorus/Delay Module [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/R/o/Rockman_Stereo_Chorus_Delay_Module_U23-39217_01.webp)
![Rockman Stereo Chorus Module [USED] Rockman Stereo Chorus Module [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/R/o/Rockman_Stereo_Chorus_U23-37582_01.webp)
![MXR M-186 Digital Time Delay Rack Processor [VINTAGE] MXR M-186 Digital Time Delay Rack Processor [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/M/X/MXR_M-186_U23-39387_01.webp)
![Lexicon LXP-1 Effects Processing Module [VINTAGE] Lexicon LXP-1 Effects Processing Module [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/L/e/Lexicon_LXP-1_U23-39278_01.webp)
![Lewitt LCT-440 Large-Diaphragm Condenser Microphone [USED] Lewitt LCT-440 Large-Diaphragm Condenser Microphone [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/L/e/Lewitt_LCT-440_U23-39301_01.webp)
![Genelec GLM Control Network Package V1.4.X Type 8200B [USED] Genelec GLM Control Network Package V1.4.X Type 8200B [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/G/e/Genelec_GLM_Control_Network_Package_V14X_Type_8200B_U23-38798_01.webp)
![Genelec GLM Control Network Package Type 8300A [USED] Genelec GLM Control Network Package Type 8300A [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/G/e/Genelec_GLM_Control_Network_Package_Type_8300A_U23-38799_01.webp)
![Dangerous Music 2-BUS LT Summing Mixer [USED] Dangerous Music 2-BUS LT Summing Mixer [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/a/DangerousMusic_2-Bus_LT_Summing_Mixer_U23-39203_01.webp)
![Boss RV-1000 Rackmount Digital Reverb [VINTAGE] Boss RV-1000 Rackmount Digital Reverb [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/B/o/Boss_RV-1000_U23-38671_01.webp)
![Boss BX-8 8-Channel Stereo Mixer [VINTAGE] Boss BX-8 8-Channel Stereo Mixer [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/B/o/Boss_BX-8_8-Channel_Stereo_Mixer_U23-38830_01.webp)
![Behringer Xenyx 502 5CH Mixer [USED] Behringer Xenyx 502 5CH Mixer [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/B/e/Behringer_Xenyx502_U23-38935_01.webp)
![Behringer RX1602 16-Input Line Mixer [USED] Behringer RX1602 16-Input Line Mixer [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/B/e/Behringer_Eurorack_Pro_RX1602_U23-38328_01.webp)
![Solid State Logic VHD Pre 500 Series Mic Preamp [USED] Solid State Logic VHD Pre 500 Series Mic Preamp [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/o/SolidStateLogic_VHD_Mic_Pre_-_500_Series_U23-39302_01.webp)
![Radial Engineering IceCube IC-1 Balanced Line Isolator and Hum Eliminator [USED] Radial Engineering IceCube IC-1 Balanced Line Isolator and Hum Eliminator [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/R/a/RadialEngineering_IceCube_IC-1_Balanced_Line_Isolator_and_Hum_Eliminator_U23-38506_01.webp)
![Meris Hedra 500 Series Pitch Shifter [USED] Meris Hedra 500 Series Pitch Shifter [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/M/e/Meris_Hedra_500_Series_U23-38451_01.webp)
![M-Audio Luna II Large-Diaphragm FET Condenser Microphone [USED] M-Audio Luna II Large-Diaphragm FET Condenser Microphone [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/M/-/M-Audio_Luna_II_U23-36817_01.webp)
![Lindell Audio 6X500 500 Series Microphone Preamp + EQ [USED] Lindell Audio 6X500 500 Series Microphone Preamp + EQ [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/L/i/LindellAudio_6X-500_Mic_Pre___EQ_U23-38452_01.webp)
![Soundboks Backpack Carrier Attachment [USED] Soundboks Backpack Carrier Attachment [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/o/Soundboks_Backpack_Carrier_Attachment_U23-28775_01.webp)
![Shure SM7B Dynamic Vocal Microphone [USED] Shure SM7B Dynamic Vocal Microphone [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/h/Shure_SM7B_Cardioid_Dynamic_Vocal_Microphone_U23-37515_01.webp)
![Rupert Neve Designs 542 500 Series Tape Emulator [USED] Rupert Neve Designs 542 500 Series Tape Emulator [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/R/u/RupertNeveDesigns_542_500_Series_Tape_Emulator_U23-38707_01.webp)
![Rupert Neve Designs 542 500 Series Tape Emulator [USED] Rupert Neve Designs 542 500 Series Tape Emulator [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/R/u/RupertNeveDesigns_542_500_Series_Tape_Emulator_U23-38708_01.webp)
![Lexicon PCM60 Digital Reverberator [VINTAGE] Lexicon PCM60 Digital Reverberator [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/L/e/Lexicon_PCM_60_U23-38354_01.webp)
![Ensoniq DP/4 Rackmount Multieffects Processor [VINTAGE] Ensoniq DP/4 Rackmount Multieffects Processor [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/n/Ensoniq_DP_4_U23-37295_01.webp)
![Alesis MidiVerb II Multi-Effects Processor [VINTAGE] Alesis MidiVerb II Multi-Effects Processor [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/l/Alesis_Midiverb_II_U23-36003_01.webp)

![Alesis Quadraverb Multi-Effects Processor [VINTAGE] Alesis Quadraverb Multi-Effects Processor [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/l/Alesis_Quadraverb_U23-38906_01.webp)
![AKG N62E Phantom Power Supply [VINTAGE] AKG N62E Phantom Power Supply [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/K/AKG_N62E_external_phantom_power_box_U23-38177_01.webp)
![AKG C535 EB Handheld Condenser Microphone [VINTAGE] AKG C535 EB Handheld Condenser Microphone [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/K/AKG_C535_EB_U23-38176_01.webp)
![Lexicon MPX 100 Multi-Effects Processor [VINTAGE] Lexicon MPX 100 Multi-Effects Processor [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/L/e/Lexicon_MPX100_U23-36465_01.webp)
![Yamaha SPX90 II Digital Effects Processor [VINTAGE] Yamaha SPX90 II Digital Effects Processor [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/Y/a/Yamaha_SPX90_U23-36004_01.webp)
![Alesis ADAT 8-Track 16-Bit 8-Track Digital Audio Recorder [VINTAGE] Alesis ADAT 8-Track 16-Bit 8-Track Digital Audio Recorder [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/l/Alesis_ADAT_8-Track_Professional_Digital_Audio_Recorder_U23-34604_01_1.webp)
![Alesis ADAT 8-Track 16-Bit 8-Track Digital Audio Recorder [VINTAGE] Alesis ADAT 8-Track 16-Bit 8-Track Digital Audio Recorder [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/A/l/Alesis_ADAT_8-Track_Professional_Digital_Audio_Recorder_U23-34605_01.webp)
![InnerTube Audio D.I. Tube x1 Desktop D.I. Box [VINTAGE] InnerTube Audio D.I. Tube x1 Desktop D.I. Box [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/I/n/InnerTUBEAudio_DI_Tube_x1_U23-34954_01.webp)
![Sony ECM-56P Cardioid Condenser Microphone [VINTAGE] Sony ECM-56P Cardioid Condenser Microphone [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/S/o/Sony_ECM_56P_Condenser_Microphone_U23-33853_01.webp)
![Yamaha MM-30 Portable Mixer [VINTAGE] Yamaha MM-30 Portable Mixer [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/Y/a/Yamaha_MM30_U23-33509_01.webp)
![Dynacord DLS 223 Digital Organ Cabinet Rotary Simulator [VINTAGE] Dynacord DLS 223 Digital Organ Cabinet Rotary Simulator [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/D/y/Dynacord_DLS_223_Digital_Organ_Cabinet_Rotary_Simulator_U23-31603_01.webp)
![TL Audio Ivory Series VP5051 Valve Processor [VINTAGE] TL Audio Ivory Series VP5051 Valve Processor [VINTAGE]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/T/L/TLAudio_Ivory_VP5051_U23-30892_01.webp)
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