From Black Lion Audio

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.

FEATURES

  • 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

Free 3-Year Warranty

Sound Pure stands behind our products. Free three-year warranty on this item. Coverage exclusions live in Terms & Conditions, Section 27.

Level of support and expertise that simply isn't available at big-box megastores. Read the warranty →

Returns

Not eligible for Try Before You Buy or the 48-hour approval period. Standard return policy applies — see Terms & Conditions, Section 18 for details.

Sound Pure Studios Control Room A — Durham, NC

Sound Pure Studios · Durham, NC

Come hear it in our control rooms.

Sound Pure is a working studio in Durham, NC — a 1,000 sq ft live room and two pro control rooms. Book a session to audition gear in a world-class acoustic space before you buy.