API / 312

This is an API microphone preamplifier. It delivers API's signature analog warmth, ample headroom, and unmistakable sound. It features a vintage-style analog VU meter.

Designed in the 1970s, the 312 is one of API's most popular microphone preamps. It's widely known in the recording industry.

Based on Saul Walker's original design, the API 312 microphone preamp combines a 2520 op-amp with a proprietary transformer. It delivers API's signature analog warmth, vast headroom, and unmistakable sound in the 500 series format.

■Features


? Vintage-style analog VU meter (0VU = +4dBu)


? Gain range: +34dB to +69dB


? Equipped with 2520 op-amp and AP2516 input transformer


? 20 dB PAD switch


? Phase inversion switch



? 3:1 output transformer tap: When ON, the output gain ratio changes from 1:3 to 1:1, resulting in an output level of approximately -10dB.


? 48V Phantom Power

? Peak LED (+18dBu)

■ Differences from the 512 Series

? Gain Range: 512 is +34dB to 65dB

? The 312 Mic Pre's circuit board design is based on the 312 Anniversary model.

? 312 Mic Pre: Uses the original AP2516 input transformer

? 512: Equipped with instrument input