512c Preamp

The API 512c is one of the most famous and respected microphone preamplifiers in the history of recording. This 500 series module is the direct descendant of the original API console preamps from the 1960s and 70s and remains a benchmark for professional audio quality. It is celebrated for its forward, punchy, and aggressive character that helps sources cut through a mix with authority. The 512c is a studio standard, trusted by engineers worldwide for recording drums, electric guitars, bass, and powerful vocals, delivering a sound that is instantly recognizable and always sits right in the track.

The design philosophy of the 512c is one of simplicity and sonic excellence. The circuit is built around the legendary API 2520 discrete operational amplifier and a proprietary transformer-balanced output stage. This combination provides very high headroom, a low noise floor, and the signature analog warmth and coloration that have defined the "API Sound." The front panel is straightforward, with a rotary gain control providing a generous 65dB of gain. It also serves as a high-impedance (450kΩ) instrument/line input when the "MIC" button is disengaged. Essential functions are included via switches for 48V phantom power, a 20dB pad for loud sources, and polarity reversal. The 512c is a pure, classic preamp that delivers professional results with minimal fuss.

Features

• World-renowned, classic API microphone preamplifier.
• Features the legendary API 2520 discrete op-amp.
• Proprietary transformer-balanced output stage.
• Provides up to 65dB of gain.
• Front panel 1/4" input can be used for Hi-Z instrument or line-level signals.
• Switches for 48V Phantom Power, 20dB Pad, and Polarity Reverse.
• Low noise floor (-129 E.I.N.) and high headroom (+30dBu clip).
• The quintessential preamp for punchy drums and aggressive guitars.