SLV Black Series Input Interface Board – BL12 / BL14 Signal PCB

The SLV Black Series Input Board is a high-precision signal processing module that serves as the entry point for all audio data into the BL12 and BL14 power amplifiers. It is designed to maintain maximum signal purity while providing the user with essential configuration tools, such as input sensitivity and operation mode toggles.

Key Features & Build Quality

• Dual-Channel Balanced Inputs: Features four high-quality HE XUAN XLR connectors (two female inputs and two male link outputs) to ensure professional-grade, noise-free balanced signal transmission.

• Integrated Crossover Logic: Built with dedicated high-pass and low-pass crossover switches, allowing the BL12 or BL14 to be tuned specifically for subwoofer or full-range cabinet drive.

• Configurable Sensitivity: Includes a switchable input sensitivity selector (0.775V / 1.0V / 1.4V) to match various professional mixing consoles and signal processors.

• Multi-Mode Operation: Features a robust sliding switch to toggle the amplifier between Stereo, Parallel, and Bridge modes.

• Clean Signal Path: Populated with low-noise electrolytic capacitors (47u 25V) and precision resistors to preserve a high signal-to-noise ratio of over 97dB.

• Industrial Connectivity: Uses multi-pin white header connectors (CN1, CN2) for secure internal connection to the main power modules and front-panel display boards.

Technical Specifications (BL Series Interface)

• Model Compatibility: SLV Black Series BL12 and BL14

• Input Type: Balanced XLR

• Link Output: Balanced XLR Male for daisy-chaining multiple amplifiers

• S/N Ratio: $>97\text{dB}$

• Operational Modes: Stereo, Parallel, Bridge

• Filter Options: High Pass / Low Pass / Bypass

Applications

• System Repair: The primary factory replacement part for damaged input jacks or faulty mode switches in BL12 and BL14 units.

• Signal Chain Optimization: Essential for users needing to bypass external crossovers by utilizing the board's internal frequency management.

• Pro Audio Maintenance: Critical spare for touring companies to resolve input-stage signal loss or ground loop issues.

Technical Note: When replacing this board, ensure the amplifier is powered down and the internal capacitors are discharged. Verify that the flat ribbon cables are correctly oriented before reseating the header pins to prevent signal phase inversion or protection circuit errors.

🚚 Fast & Reliable Delivery Across India

We strive to ensure a smooth and quick delivery experience for all our customers.

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  Same-Day Dispatch: All orders are usually dispatched on the same day, with daily cut-off around 4:00 PM IST.
  
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  Delivery Time: You can expect your order to reach you within 4–5 working days, depending on your location.
  
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  Pan India Shipping: We deliver across all cities and villages in India, so no matter where you are, we’ve got you covered.
  
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  Trusted Courier Partners: Your orders are shipped through reliable logistics partners like DTDC and Delhivery to ensure safe and timely delivery.
  

💡 Whether it’s a metro city or a remote village, you don’t need to worry — we make sure your order reaches you securely.

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📩 Email: info@slvsales.in

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