SLV Black Series Input Interface Board – BL7 / BL9 Signal PCB

The SLV Black Series Input Board serves as the primary signal gateway for the BL7 and BL9 power amplifiers. It is engineered to maintain balanced signal integrity while offering professional-grade controls for tailoring the amplifier's response to specific venue requirements. This board integrates directly with the amplifier's internal architecture to provide seamless mode switching and frequency filtering.

Key Features & Build Quality

• Professional Balanced Connectivity: Features four high-quality HE XUAN XLR connectors (two female inputs and two male link outputs) for reliable, noise-free balanced audio transmission.

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

• Adjustable Input Sensitivity: Equipped with a switchable selector (0.775V / 1.0V / 1.4V) to ensure compatibility with a wide range of professional mixing consoles.

• Integrated Frequency Management: Features onboard crossover logic with High Pass and Low Pass filtering options, optimized for driving full-range cabinets or subwoofers.

• Precision Signal Path: Populated with low-noise 47u 25V electrolytic capacitors and high-tolerance resistors to preserve a high signal-to-noise ratio.

• Secure Internal Interface: Utilizes standardized multi-pin header connectors (CN1, CN2) for stable communication with the front-panel display and main power modules.

Technical Specifications (BL Series Interface)

• Model Compatibility: SLV Black Series BL7 and BL9.

• Input Architecture: Balanced XLR with Link-Through.

• S/N Ratio: $>97\text{dB}$.

• Frequency Response: $20\text{Hz} - 20\text{kHz}$.

• Operational Flexibility: Stereo, Parallel, and Bridge modes.

Applications

• Factory Restoration: The direct replacement part for repairing damaged input jacks or faulty mode switches in BL7 and BL9 units.

• Touring Maintenance: A critical spare component for technicians to resolve input-stage noise or signal loss in professional rack systems.

• System Integration: Allows for precise gain matching and frequency crossover without the need for external processing gear.

Technical Note: When installing this module, ensure all ribbon cables are properly oriented and seated in the white header pins. Failure to secure these connections can lead to signal dropouts or incorrect triggering of the amplifier's protection circuits.

🚚 Fast & Reliable Delivery Across India

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

• 
  Same-Day Dispatch: All orders are usually dispatched on the same day, with daily cut-off around 4:00 PM IST.
  
• 
  Delivery Time: You can expect your order to reach you within 4–5 working days, depending on your location.
  
• 
  Pan India Shipping: We deliver across all cities and villages in India, so no matter where you are, we’ve got you covered.
  
• 
  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.

🎥 Watch Product Review & Testing Video

Explore the complete review and real-time testing of this product on our YouTube channel SLV INDIA to understand its performance and quality before you buy.

🤝 Collaborate With Us

Are you a content creator interested in featuring this product? We’d love to work with you!

📩 Email: info@slvsales.in

📞 Call/WhatsApp: +91 98888 24825