Black Lion B12A MKII Preamp Overview
Take the B12A, combine it with a little magic sauce and what are you left with?
The B12A MKII!
Phil O’Keefe at Harmony Central, believes “Black Lion Audio’s B12A MKII is one of the best ways to get into a 312A style preamp at a reasonable price” so get those ears ready to experience exactly what you've been missing.
This successor features less noise, a new and exciting cinemag input transformer, and more of the API-style gain - that we all love - than ever before. The B12A is a sweeter for any preamp collection. Inspired by the classic American rock sound of the original API® 312A, the B12A MKII ensures high-end sound and the rugged quality you’d expect from B.L.A.
Performer mag described this gem's character as "big, warm and quite muscular with plenty of punch. The bottom-end is solid and weighty while the upper frequencies are clear and reasonably extended"
USER INFORMATION
GAIN: Clockwise rotation generates a boost in input signal amplitude, Counterclockwise rotation generates a decrease in input signal amplitude. PHANTOM POWER (+48v): Engage and Disengage to supply Phantom power. PHASE: Adjust input signal amplitude by 180% when engaged, disengage to leave input signal unadjusted. PAD: Engage to reduce input signal amplitude by 13dBu, disengage to leave input signal unadjusted. Hi-Z: Engage front Panel Hi-Z IN as the source of Preamp, disengage to use 500
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- 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):
- .012% @ +22 dBu
- .013% @ +36 dBu
- .046% @ +56 dBu
- .145% @ +66 dBu
- Bandwidth (1kHz, 150Ω source, unweighted): 10Hz to 30kHz
- 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):
- .013% @ +10 dBu
- .124% @ +36 dBu
- 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 13” x 5”
- Shipping Weight: 6 lbs