Showing 1–30 of 136 results

500 Series Signal Processors

500 Series modular processor, preamp, compressor, EQ, and more!
Customize your rack with all the right tools for the job.
Sonic Circus offers 500 Series from API, Rupert Neve, SSL, Chandler, and many more.


3 channel horizontal 500 series rack with linking option, loaded with 312A G10-500C.


3 channel horizontal 500 series rack with linking option.

MSRP: $949.00

Sample Rate: 192kHz to 12kHz, Resolution: 24 bits, Minimum Delay: 0.11 milliseconds, Maxiumum Delay: 10 seconds @ 192kHz 60 seconds @ 12kHz, Input: Max 24dBu, 18k­ impedance, Output: Max 24dBu, 50­ impedance, Insert Send: Max 10dBu, 2k­ impedance, Insert Return: Max 20dBu, 50k­ impedance, Power: +16V 200mA, -16V 100mA


Dual-capsule Large-diaphragm Condenser Modeling Microphone with 2-channel Mic Preamp, Software Bundle, and XLR Cable


De-Esser/High Frequency Limiter


500 Series Tube Compressor with Hard/Soft Knee Modes, Switchable Feedback Modes, Wet/Dry Parallel Compression, and Multi-unit Linking.


2 Slot Horizontal 19" Rack for 80 Series Modules, Independent Phantom 48V switches and Output Faders, Built-in Compression Link Buss, Internal 24V PSU. XLR I/O, 3RU Chassi


8 Slot Vertical Rack for 80 Series Modules, 8 Independent Phantom 48V switches and Output Faders, 2 Built-in Compression Link Busses, External 24V PSU. XLR I/O, 19" 5RU Chassi


8-Slot 500 Series Chassis with Integrated 10-channel Summing Mixer, Individual Pan, Fader, and 48V Phantom. Master Fader, External +_16V PSU. 3RU 19" Rackmount. DB25 and XLR I/O Daisychainable


10 Slot Powered 500 Series Rack. 19" Rackmount with XLR in/out and Phantom 48V


6 Slot Powered 500 Series Rack. 19" Rackmount with XLR in/out and Phantom 48V


4 Slot Powered 500 Series Rack, with XLR in/out and Phantom 48V


500 series module streams audio from your mobile device over Bluetooth and delivers a fully Burr Brown balanced, +22dBu stereo output.


Mic Pre with 60dB of gain, Compressor with sidechain and highpass filter, PPM gain reduction meter. 2 space unit, Stereo Linkable


500 Series 3-band Selectable Indutor EQ Module

MSRP: $2,195.00

Features Continuously variable detented Gain, Threshold, Attack, Ratio and Release controls, 10 segment LED meters, Over Threshold LED, Patented THRUST Switch, 3 selectable compressor curve Knee settings, Selectable New or Old switch, Selectable variable or auto compressor, Audio circuit uses 2520 and 2510 Discrete Op Amps with transformer output.

MSRP: $999.00

8 Channel Microphone Preamp and ADC with 2 Discrete JFET DIs and 2 Retro Channels

MSRP: $1,749.00

8 Channel Microphone Preamp and ADC with Burr Brown Converters, Variable Highpass Filters, and 2 Discrete JFET DI's

MSRP: $549.00

500 Series, 2 Module Rack

MSRP: $1,049.00

The karacter 500 is a box full of vibrant colors. It covers a complete spectrum including mastering-grade saturation, tube-inspired distortion and glorious destruction.

MSRP: $805.00

The mpressor 500 brings the heritage of our extremely powerful rack mount mpressor into the 500 series format.


500 Series Zero Distortion Technology Mic Preamp with 1Hz to 200kHz Frequency Response

MSRP: $22.00

A Single slot blank panel, used in the API lunchbox, 500V Rack and expansion slots for the 1608.


Rack Ears are available for both the current production model lunchboxes (product number: 920-0859), as well as the previous model (product number: 920-0737), Made from aluminum and finished with a durable black coat.

MSRP: $995.00

Features, Mic Preamp with 65 dB of gain, Variable Output Level Control, 3:1 Output Transformer Tap Selection, Front and Back Panel Mic Input Access, Line/Instrument Preamp with 45 dB of gain.

MSRP: $749.00

500 Series Analog De-Esser

MSRP: $595.00

Features, Polarity button, 20dB Input Pad, Calibrated Level mode, Output Ratio selector, Clip LED indicator, Continuously variable Output Gain, Traditional API fully discrete circuit design.

Call for Price

500 Series Racks are available as 11 space Rackmounts, 6 space Rackmounts and 6 space Lunchboxes.


500 Series 3-band EQ with 5 Selectable Frequencies Per Band, Jensen Input and Output Transformers, and Avedis 1122 Op-amps


500 Series 10-band Graphic EQ with Transformer-balanced Signal Path, Highpass and Lowpass Filters, and 2520 Style Op-amp

Sonic Circus Subscribe TodaySubscribe to our weekly specials:
New Arrivals : Exclusive & Vintage Gear