500 series mic/line/instrument preamp based on the 512c with added variable output level control and 3:1 output transformer tap selection Sonically, it delivers the instantly recognizable API sound... View more
Single-channel microphone/line/instrument preamp for 500 Series The API 512c is a mic / line / instrument preamp, world famous for its ability to provide a low noise (-129 EIN) and unusually good... View more
Classic microphone preamp in a 500 Series module featuring a discrete circuit design with 2520 Op Amp and proprietary AP2516 input transformer The 312 is one of API's most sought after and famous mic... View more
500 Series line amplifier Modeled after API's highly prized console-based 325 booster cards, the 535 can both amplify and attenuate incoming and outgoing signals for ultimate flexibility-all while... View more
500 Series discrete direct input with gain control Like the console-based API 205L, the 505-DI is specifically designed to accept a guitar, bass or keyboard direct input while minimizing any loading... View more