Browse 500 Series

Classic API Microphone Preamp design with switchable 3:1 Output Transformer and variable output level control

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

DI designed specifically to accept guitar, bass, or keyboard signals with unique TONE control

Classic API Microphone Preamp design in 500 series format

Exact reissue of API’s original 525 “Feedback” type compressor released in the early 70s

VCA based compressor/limiter

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

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...