B12A Quad - Receiver Black Lion Audio - Free user manual and instructions
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| Product Type | Quad Channel Receiver |
| Brand | Black Lion Audio |
| Model | B12A Quad |
| Channels | 4 |
| Form Factor | 19-inch Rackmount, 1U |
| Dimensions (H x W x D) | 1.75 x 19 x 6.5 in (44 x 483 x 165 mm) |
| Weight | 5.5 lb (2.5 kg) |
| Power Supply | 100-240V AC, 50/60 Hz |
| Input Connectors | Balanced XLR or 1/4" TRS (per channel) |
| Output Connectors | Balanced XLR (per channel) |
| Frequency Response | 20 Hz - 20 kHz |
| Signal-to-Noise Ratio | > 100 dB |
| THD+N | < 0.005% |
| Maximum Input Level | +20 dBu |
| Maximum Output Level | +24 dBu |
| Gain Range | 0 to 60 dB |
| Phantom Power | +48V, switchable per channel |
| Pad | -20 dB per channel |
| Polarity | Phase invert switch per channel |
| LED Indicators | Signal, Clip, Phantom Power |
| Construction | Steel chassis, aluminum front panel |
| Cooling | Passive (fanless) |
| Operating Temperature | 32°F to 104°F (0°C to 40°C) |
| Cleaning | Wipe with dry, lint-free cloth |
| Safety | Keep away from liquids; do not block vents |
| Repairs | Only authorized Black Lion Audio service |
| Included Accessories | Power cable, rack ears, manual |
Frequently Asked Questions - B12A Quad Black Lion Audio
What is the B12A Quad used for?
The B12A Quad is a professional 4-channel receiver designed for high-quality audio signal distribution, ideal for studio or live sound applications.
Does it require special cables?
It accepts standard balanced XLR or 1/4" TRS cables for inputs and outputs. Use balanced cables for best noise rejection.
Can I use it with dynamic microphones?
Yes, it works with all microphone types. You can engage +48V phantom power per channel for condenser mics.
How do I mount it in a rack?
Attach the included rack ears using the screws provided. It occupies 1U of rack space. Ensure proper ventilation.
What does the Clip LED indicate?
The Clip LED lights up when the input signal is too high and nearing distortion. Reduce the gain or engage the -20 dB pad.
Is the unit fanless?
Yes, the B12A Quad uses passive cooling for silent operation. Do not block the ventilation slots.
What is the warranty period?
Black Lion Audio offers a limited 2-year warranty from date of purchase. Keep your receipt.
Can I daisy-chain multiple units?
Yes, you can connect outputs of one unit to inputs of another using balanced cables. The total load must not exceed the power supply rating.
How do I clean the front panel?
Disconnect power and wipe gently with a dry, lint-free cloth. Do not use solvents or abrasive cleaners.
What should I do if a channel stops working?
Check cables and connections. Ensure phantom power is off when not needed. If problem persists, contact Black Lion Audio support for repair.
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USER MANUAL B12A Quad Black Lion Audio
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Product information
Brand : Black Lion Audio
Model : B12A Quad
Category : Receiver