Black Lion Audio B173 Quad 4 Channel Microphone Preamplifier

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    Please give a warm welcome to all 70dB of Black Lion Audio’s latest iteration of 1073-style gain, the B173 Quad! Rather than ‘just another clone,’ the B173 Quad seamlessly combines vintage character with modern sensibilities in a stylish 2U chassis with a feature set to satisfy the most demanding of audio engineers. A revamped gain stage and lower noise floor pave the way to a cleaner, lower distortion sound, while Cinemag input and output transformers keep things smooth and warm.

    Two front panel D.I.’s impart a harmonically rich tone to guitars, keyboards, and synthesizers, and stepped input gain and variable output attenuation allow for perfect control over transformer saturation. Metering on all 4 channels displays how hot your output signal is hitting the parallel TRS/XLR outputs, and an external power supply keeps noise out of your tracks! At under $375/channel, there’s no reason not to add a B173 Quad to your front end arsenal, or two!

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    Black Lion Audio B173 Quad 4 Channel Microphone Preamplifier Specifications

    Black Lion Audio B173 Quad 4 Channel Microphone Preamplifier Specifications
    Product SpecificationsBlack Lion Audio B173 Quad 4 Channel Mic Preamp Specifications
    • Mic Section
      • Max Microphone Input Level: +1dBu
      • Input Impedance: 200O
      • Pad: None
      • Gain (no pad): +12dB to +70dB
      • Equivalent Input Noise (noise floor): -105dBu
      • THD+N: (@4dB Output):
        • .04% @ 8dBu
        • .05% @ 25dBu
        • .06% @ 40dBu
        • .08% @ 55dBu
        • .21% @ 66dBu
      • Bandwidth (1kHz, 150O source, unweighted): 10Hz to 30kHz
    • D.I. Section
      • Max D.I. Input Level: +18dBu
      • Input Impedance: 1.1MO
      • Pad: None
      • Gain: Up to +25dB of gain
      • Equivalent Input Noise (noise floor): -100dBu
      • THD+N (@ +4dBu output):
        • .021% @ +10 dBu
        • .016% @ +20 dBu
      • Bandwidth (1kHz, 600O unbalanced source, unweighted): 10Hz to 30kHz
    • Output Section
      • Max Output Level: +28dBu
      • Output Impedance: 600O

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