Black Lion Audio B173 Quad Mic Preamp

4-Channel Microphone Preamplifier

• 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: 3.7 kg