API 312 Microphone Preamplifier

The API 312 Microphone Preamplifier is one of API's most sought after and famous mic preamps.

2020

API 312 Microphone Preamplifier Details

First introduced in the 1970s, it is well known and respected throughout the recording industry and is the building block of the modern 3124 rack unit.

Based on API co-founder Saul Walker’s original designs, the API 312 Mic Pre combines our 2520 op-amps and proprietary transformers. It delivers the analogue warmth, massive headroom and unmistakable sound for which API is known, in a convenient 500 Series format.

Following the success of the hand wired 312 50th Anniversary Edition, this standard production version offers the classic API sound at an affordable price. Like all API products, the API 312 is backed by API’s unique Five-Year Warranty.

Features

  • API 312 Microphone Preamp in a 500 Series module
  • Vintage Style Analog VU Meter
  • Maximum 69dB of gain
  • Traditional API fully discrete circuit design with 2520 Op Amp
  • Proprietary AP2516 Input Transformer
  • 20 dB pad switch
  • 3:1 Output Transformer Tap Selection
  • Switchable 48V phantom power
  • Peak LED
  • API’s Five-Year Warranty

Specifications

  • Gain Range: +34 dB to +69 dB (+14 dB to +49 dB with pad)
  • Maximum Input Level: -4 dBu (+16 dBu with pad)
  • Maximum Output Level: +31 dBu
  • Peak LED: Set to +18 dBu output level
  • Output Impedance: Less than 75 Ohms, transformer balanced
  • Frequency Response: ±0.5 dB, 20 Hz to 40 kHz
  • Signal to Noise Ratio: 120 dB
  • Connections: 15 position .156″ sp. edge connector
  • Power Consumption: ±16 Volts/DC @ 55 mA
  • Size: 1.5″ x 5.25″ x 6.75″

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The details provided above are drawn from historical documents like advertising brochures or user manuals. They’re shared without bias or review. This info is given solely for your consideration, helping you gauge its usefulness to you.

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