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

Mic Pre / DI / Comp

500 Series Tube Preamp

Guitar Effects Interface & Reamp Module

500 series bitcrusher

Stereo passive EQ

A four-band inductor-based EQ. Designed to work in standard "500" Series Racks

Listen Mic Compressor

discrete, 500-series microphone preamp

The Legendary ZÄHL Stereo Mastering Equalizer

Mid/Side

Vari-Mu compressor

Tube Preamp

Tube Preamp

Hairball Elements Bronze is an amazing, colored, and unique pre. If you've ever...

"Possibly the best Stereo Chorus out there"

Feedback-style FET compressor

faithful 1176-style FET compressor in 500 series format