Vari Mu Comp

The Impulse Shaper

Colour Palette 500-Series MK2 Kit

Transient Designer 500 Series module

500 Series Dual-channel Multi-frequency-band Optical Compressor with Independent...

500 Series 3-band Parametric Equalizer, with Switchable Peak/Shelf Curves for Low and...

The 500 Series version of Golden Age Project's Neve 1073 preamp clone.

Modeled after API's highly prized console-based 325 booster cards, the 535 can both...

Parametric Equalizer

Vacuum Tube Optical Compressor Module

FET Compressor Module

Easy to use, this utility piece allows you to take wet and dry into the API 500...

Insert Station; Active DI-box; Reamp Tool; Multi-tool on Stage

500 Series Microphone Preamp

Preamp for 500 Series

Classic Four-band Parametric Equalizer

The Coloring Box

Opto Tube Comp

Opamp based Mic Preamp

All-discrete 8-channel Summing Amp for the Purple Audio Sweet Ten 500 Series Rack

Four opamp, differential mic preamp.

Two stage API console channel with high and low pass filters

Insert Master module with stereo send and return and mid/side stereo functions

Pre Amp

Pultec-style passive EQ

World's first 1176 style compressor with digital control through VST/AAX plugin.

A 500 series kit based on the 1176 blue face compressor.

Versatile Stereo Compressor

500 Series Mono VCA Compressor Limiter

Versatile stereo compressor

Mic preamp with 1 Colour module

3 colour modules in 1 500 rackunit

Series Tube Drive