XQP 541 Optical Compressor - 500 Series

Trident SC2-500 500 Series Optical Stereo Compressor

Elysia Xpressor Stereo Compressor (500 Series) Mix Buss/Drum Bus/Vox Bus/Class A

Trident Audio Developments 80B 500 Series Mic Preamp

DIYRE Colour Palette - 500 Series

Trident Audio Developments A-Range 500 Series Mic/Line/Instrument Preamp

Elysia mpressor 500 Mono 500 Series Compressor Module - Drums/Bass/Vocals

Trident Audio Developments 80B 500 Series EQ