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

In addition to the standard included manufacturer warranty, virtually all new products carry our exclusive, industry-leading, absolutely free Sound Pure 3-Year Warranty, which includes parts and labor. It's our way of adding real value to the personal touch our small, dedicated team brings to every purchase.

Coverage exclusions live in Terms & Conditions, Section 27. Read the warranty →

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.