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- The B173 Quad packs a massive punch.
- Delivering the muscular lows, assertive mids, and glossy highs characteristic of a vintage 1073 in a budget-friendly 2RU unit.
- Features high-end parts and discrete Class-A circuitry with transformer-coupled input and output stages.
- With 70dB of gain on tap, the B173 Quad serves up heaping portions of low-noise headroom.
Black Lion B173 Quad Four-Channel Microphone Preamp
The B173 Quad (four-channel mic pre) packs a massive punch, delivering the muscular lows, assertive mids, and glossy highs characteristic of a vintage 1073 in a budget-friendly 2RU unit. The B173 Quad features high-end parts and discrete Class-A circuitry with transformer-coupled input and output stages. With 70dB of gain on tap, the B173 Quad serves up heaping portions of low-noise headroom. Now you’ll finally be able to use your low-output ribbon mics on quiet sources! The B173 Quad imparts a bold sonic assertiveness that beefs up any signal you pass through it.
The B173 Quad is a four-channel mic pre-version of the single-channel model. More than just another 1073 clone, the B173 Quad combines vintage-inspired sonics and modern features in a rugged 2RU 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.
Key Features:
- 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
- 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)
- 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
IP67 | No |
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