Outboard

API 500-Series rack modules screw This listing is for a single screw. The API 500-Series screws are replacement or spare screws for your 500-series...

API 5B1 Blank Panel This is a blank 500 series blanking panel that helps protect the internal connectors of unused slots in your 500 series lunchbox.

API 2520 OpAmp The API 2520 OpAmp is an Operational Amplifier that is fundamentally a voltage amplifying device designed to be used with external f...

API 920-0859 The API 920-0859 is a pair or rack ears that are designed to be attached to the API lunchbox 500 series chassis allowing you to rack y...

API 508 - 18 Pack of Module Screws The API 508 18 Pack is a packet of 500 series module screws. 500 series screws can be hard to find so this packe...

API 2500+ Stereo Buss Compressor - B-Stock The API 2500+ Stereo Bus Compressor is a versatile bus compressor, famous for its ability to add sonic c...

API Select TranZformer CMP - Compressor Pedal The API Select TranZformer®CMP incorporates API’s legendary VCA-type compressor circuit into a versat...

API 560 - 10 Band Graphic EQ - 500-Series Module - B-Stock Originally conceived for use in API Consoles of the 60's and 70's, the API 560 re-issue ...

API Lunchbox 8HC - 8 Slot Portable 500-Series rack with external Power Supply The API Lunchbox 8HC is an 8-slot 500-series chassis with DB25 connec...

API 512V The API 512v is a preamp for mic, line and instrument feeds, world famous for its ability to provide a low noise (-129 EIN) and unusually ...

API Select TranZformer GTR - EQ, Boost and Overdrive Pedal The API Select TranZformer® GTR incorporates API’s legendary EQ circuit into a versatile...

API 312 - 500-Series Mic Pre Module - B-Stock The API 312 is 500 series adaptation of API's original 312 microphone pre-amp. The 312's design is ba...

API 550A - 3 Band EQ - 500-Series Module - B-Stock (Ex-Demo) Few equalizers enjoy the respect and admiration of the coveted API 550A. Designed by t...

API 512C - 500 Series Mic Line Preamp/DI The API 512C is a mic/line/instrument preamp designed to provide a low noise, unusually good sounding fron...

API 500 Series 550A - 3 Band Equalizer Few equalizers enjoy the respect and admiration of the coveted API 550A. Designed by the now legendary Saul ...

API 2500+ Stereo Buss Compressor The API 2500+ Stereo Bus Compressor is a versatile bus compressor, famous for its ability to add sonic character a...

API 500-6B The API Model 500-6B Lunchbox is a six position rack designed to accept all API standard 5.25" X 1.5" modules. This allows an engineer t...

API 527A - Compressor / Limiter - 500-Series Module The API 527A is mono VCA based compressor limiter designed in the 500 series format. The 527A f...

API 312 - 500-Series Mic Pre Module The API 312 is 500 series adaptation of API's original 312 microphone pre-amp. The 312's design is based on Sa...

API 565 - Discrete Filter Set - 500-Series Module The API 565 Filter Bank is a 500-series module featuring sweepable high-pass and low-pass filters...

API 529 The API 529 is a 500-Series (2 slot) stereo compressor module that combines the convenience and popularity of the 500 Series format API's c...

API 525 Originally released in the 70's, the API 525 is a "feedback" type compressor, such as the 1176 and 660, etc. An input (threshold) control a...

API 505 DI - Discrete DI - 500-Series Module The API 505 DI is a 500-series direct input module. The 505 DI is designed specifically for guitar, ba...

API 529 Stereo Compressor 500-Series Module - B-Stock ---This unit has been unboxed and on display in our showroom. As new with full warranty. The ...

API Select T12 - 2 Channel Tube Mic Pre The API Select T12 is a classic 2-channel, all-tube, Class-A microphone preamplifierdesigned with API’s pro...

The API 550 EQ played a major part in the history of music recording in the USA during the 60's and 70's. Originally conceived for use in API's con...

API 525A Mono Compressor - 500-Series Module Since the early 1970s and the subsequent re-issue over 20 years ago, the 525 Discrete Compressor has b...

API TCS-II The Channel Strip The API TCS-II is a complete input module with mic pre, dynamics processing, precision EQ and output level control. Wi...

API Select SV14 - Parametric EQ - 500 Series The API Select SV14 is a four band parametric EQ, re-engineered  from the highly sought-after APSI 562...

API Select SV12 - Compressor - 500 Series The API Select SV12 is a mono channel compressor in 500 series format, featuring the original compressor ...

API MC531 Desktop Monitor Controller featuring 1 Main & 2 Alternative Stereo Outputs plus built-in Talkback mic Building on its rich heritage o...

API Select SR24 - Dual Channel Equalizer The API Select SR24 is a two channel, four band equalizer in a two rack-space chassis. With a dedicated kn...

API Select SR22 - Dual Channel Compressor The API Select SR22 is a Dual Channel Compressor featuring two channels of API’s patented award winning V...

API 535-LA The API 535-LA is a line amplifier that includes a balanced input, a polarity switch, a 20dB pad for incoming signal attenuation and a t...

The lineage of the 5500 circuit can be traced back to the original 550 equalizer designed by Saul Walker, the founder of Automated Processes Inc. T...

API 500V - 10 Slot Rack + L200PS PSU The API 500V is a rugged 10-slot, 3U rackmountable chassis for your modular 500 series gear. Powered by a tri-...

API 3124V The API 3124V is a compact 4 channel mic preamp perfect for any professional engineer or studio. It has a RE-115K mic input transformer a...

API 3124MV The API 3124MV is a professional 4 channel mic preamp with stereo mixer, it has been designed with professional engineering in mind. Unl...

API 3124MB+ The API 3124mb+ is a high-quality 4 channel mic preamp with the addition of an audio mixer with a transformer balanced output. Each cha...