Browse 500 Series

3 bands of classic API equalization

Classic 4-band EQ based on the original API 550 EQ

10-band Graphic EQ based on the original API 560 EQ

8-slot 500 Series rack designed to accept all API standard 5.25″ X 1.5″ modules

Stereo Compressor based on the famous API 2500 Stereo Bus Compressor in 500 Series format

6-slot 500 Series rack designed to accept all API standard 5.25″ X 1.5″ modules

10-slot 500 Series rack designed to accept all API standard 5.25″ X 1.5″ modules

Single slot blank panel for the API lunchbox®, 500V Rack, and expansion slots for...

3 bands of classic API equalization

Special Edition 10-band Graphic EQ based on the original API 560 EQ

Limited Edition 312 Microphone Preamp based on the original 1970’s 312 PCB Design

Limited Edition 3-band EQ based off the legendary 1971 550A