Black Lion Audio B173 Quad Mic Preamp

4-Channel Microphone Preamplifier

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Technical Data

Manufactured by Black Lion Audio
Released in 2020
Average price : $1896
Classic 1073 preamp design with 70 dB gain
Discrete Class A circuit
Input and output transformers from Cinemag
Channels 1 and 2 with additional DI input
Switchable 48 V phantom power per channel
Max. Input level Mic In: +1 dBu / DI In: +18 dBu
Frequency range: 10 - 30000 Hz
Gain Mic In: 12 to 70 dB adjustable in steps
Switchable phase inversion
THD + N Mic In: 0.02% (+45 dB Gain, +4 dBu Output) / DI In: 0.03% (+25 db Gain, +4 dBu Output)
EIN (Equivalent Input Noise) Mic In: -105 dBu / DI In: -100 dBu
Input impedance Mic In: 200 Ohm / DI In: 1.1 MOhm (unbalanced)
Max. Output level: +28 dBu
Output impedance: 600 ohms
4 Balanced XLR inputs
2 Unbalanced 6.3 mm jack inputs
4 Balanced XLR and jack outputs
External power supply
Height: 2 U
Width: 19"
Depth: 178 mm
Weight : 3.7kg