Black Lion Audio B173 Quad 4-Channel Microphone Preamplifier

What's better than a Black Lion Audio 1073-style mic preamp? Four of them! The B173 Quad gives you 70 dB of clean gain with plenty of rich vintage character.
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!
- 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
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 13.25 lbs
Shipping Dimensions: 25 x 11 x 7 in
Manufacturer Part Number (MPN): BLD B173QUAD
For support or warranty questions, please contact the manufacturer:
Phone: 773-549-1885