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Black Lion B12A MKII Mic Pre


Fast and Punchy Preamp with tons of transient detail and vintage console vibe

Inspired by the classic American rock sound of the original API® 312A, the B12A MKII delivers the high-end sound and rugged quality you’d expect from B.L.A., at an amazing price! The B12A MKII is a single-channel microphone preamp in the style of an API® 312A, and features an upgraded input transformer, higher gain, and lower noise than the original B12A. It also features an output transformer, a Hi-Z input, phantom power, pad, phase, and is housed in a 1U, 1/2 rack chassis.


  • Cinemag Input Transformer
  • Edcor Output Transformer
  • 70dB Gain
  • Hi-Z Input (passive, unbalanced)
  • Phantom Power
  • 18dB Pad
  • Phase Switch
  • XLR Microphone Input
  • TRS Line Output (balanced)




Mic Section

  • Max Microphone Input Level: +1dBu

  • Input Impedance: 200Ω

  • Pad: 18dB

  • Gain (no pad): +26dB to +70dB

  • Equivalent Input Noise (noise floor): -120dBu

  • THD+N (@ +4dBu output):Bandwidth (1kHz, 150Ω source, unweighted): 10Hz to 30kHz
    • .012% @ +22 dBu
    • .013% @ +36 dBu
    • .046% @ +56 dBu
    • .145% @ +66 dBu

D.I. Section

  • Max D.I. Input Level: +18dBu

  • Input Impedance: 1.1MΩ

  • Pad: none

  • Gain: +10dB to +53dB

  • Equivalent Input Noise (noise floor): -102dB

  • THD+N (@ +4dBu output):Bandwidth (1kHz, 600Ω unbalanced source, unweighted): 10Hz to 30kHz
    • .013% @ +10 dBu
    • .124% @ +36 dBu

Output Section

  • Max Output Level: +28dBu

  • Output Impedance: 600Ω


Power Supply

  • 24VAC, 500mA External Supply


Product Dimensions

  • 9.5” x 6.5” x 1.75”


Product Weight

  • 3.2 lbs


Shipping Dimensions

  • 13” x 13” x 5”


Shipping Weight

  • 6 lbs

UPC: 700254866994
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Discount Price: $499.00

Ships Quick! Usually ships 24-48 hours after order processed.

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