Black Lion Audio

B12A Quad

Four Channel Mic Pre

View Dealers

B12A Quad line art

The B12A Quad is a 4-channel version of the legendary single-channel B12A Mk2. More than just another 312A clone, the B12A Quad combines vintage-inspired sonics and modern features in a rugged 1RU chassis with a smart feature set that will satisfy the most demanding audio engineers. A revised gain stage and lower noise floor deliver cleaner sound with lower distortion, while CineMag input and output transformers keep things warm, creamy, and beefy. Two front-panel DIs impart harmonic richness to guitars, basses, and synths, while stepped input gain and variable output attenuation give you exacting control over transformer saturation. Per-channel metering displays how hot your output signal is hitting the parallel TRS/XLR outputs, while an external power supply keeps noise out of your tracks.


4-channel preamp with USA CineMag input and output transformers

Designed and assembled in the USA

Bandwidth (1kHz, 150Ω unbalanced source, unweighted): 10Hz–30kHz

70dB of gain handles any type of microphone, including low-output ribbons

Per-channel gain and output controls, phantom power, polarity reverse, 18dB pad, hi-Z switch, and DI input


Preamp Type: Solid State

Number of Channels: 4

Phantom Power: Yes

Pads: Yes

Polarity Switch: Yes

Analog Inputs: 2 x 1/4″ (Hi-Z), 4 x XLR

Analog Outputs: 4 x XLR, 4 x 1/4″

Rack Spaces: 1U

Power Source: 5-pin AC Adapter power supply (included)

Manufacturer Part Number: B12AQUAD