Black Lion Audio B12A MkII Mic Pre

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. What happens when you take the stately B12A and add some extra special sauce? You get the B12A MkII!With a titillating CineMag input transformer, less noise, and more API-style gain than ever before, the B12A MkII will sweeten your preamp collection for years to come! According to Phil O’Keefe at Harmony Central, “Black Lion Audio’s B12A MkII is one of the best ways to get into a 312A style preamp at a reasonable price,


• Cinemag Input Transformer • Edcor Output Transformer • 70dB Gain • Hi-Z Input (passive, unbalanced) • Phantom Power • 10dB Pad • Phase Switch • XLR Microphone Input • TRS Line Output (balanced)


Mic Section

• Max Microphone Input Level: +1dBu

• Input Impedance: 200Ω

• Pad: 10dB

• Gain (no pad): +26dB to +70dB

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

• THD+N:

       • .01% @ +26dB Gain

       • .011% @ +40dB Gain

       • .049% @ +60dB Gain

       • .15% @ +70dB Gain

• Bandwidth (1kHz, 150Ω source,

unweighted): 10Hz to 30kHz

D.I. Section

• Max D.I. Input Level: +18dBu

• Input Impedance: 500kΩ

• Pad: none

• Gain: +10dB to +53dB

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

• THD+N:

       • .008% @ +10dB Gain

       • .01% @ +25dB Gain

       • .03% @ +40dB Gain

       • .14% @ +53dB Gain

• Bandwidth (1kHz, 600Ω unbalanced

source, unweighted): 10Hz to 30kHz

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 11” x 5”

Shipping Weight

• 5.5 lbs