API 3124+ is a high-quality, dual-channel microphone preamplifier designed by Automated Processes Inc. (API). Built on the classic 312 mic preamp circuit, it delivers the signature API sound—characterized by punchy mids, fast transient response, and rich harmonic content. Featuring high-gain, low-noise performance, front-panel DI inputs, and robust build quality, the 3124+ is ideal for tracking drums, vocals, guitars, and other instruments in both studio and live environments.