Novastar HDR Master 4K is a revolutionary video processor that redefines visual experiences by converting Standard Dynamic Range (SDR) content into High Dynamic Range (HDR) formats. Designed with cutting-edge technology, this device empowers users to achieve stunning visuals with superior image quality, remarkable input/output density, and advanced processing capabilities—all within a compact and highly efficient design. Whether you’re in the rental industry, managing stage control systems, or operating fine-pitch LED screens, Novastar HDR Master 4K LED Video Processor is your ultimate solution for delivering immersive visual experiences.
1. What is Novastar HDR Master 4K?
The HDR Master 4K Processor is NovaStar’s flagship product, engineered to convert SDR content into HDR10 and HLG formats. This award-winning device combines an optimal SDR-to-HDR conversion algorithm with NovaStar’s proprietary SuperView III scaling technology, ensuring every pixel is reproduced with precision and clarity.
With full 4K input and output connectors, the HDR Master 4K LED Controller supports resolutions up to 8K×1K@60Hz, making it ideal for applications requiring high-resolution displays. Its versatile connectivity options, including HDMI 2.0, DP 1.2, and 12G-SDI, allow seamless integration with a wide range of equipment, while its intuitive LCD screen provides real-time monitoring and control.
2. Novastar HDR Master 4K LED Tech Specs
Key Features:
- Input Connectors: 1x HDMI 2.0, 1x DP 1.2, 4x 12G-SDI
- Output Connectors: 2x HDMI 2.0, 4x OPT (10G optical fiber), 4x 12G-SDI
- Resolution Support: Up to 4K×2K@60Hz input/output, with support for 8K×1K@60Hz via HDMI 2.0.
- Dynamic Range: Free conversion between SDR, HDR10, and HLG.
- Color Depth: Adjustable bit depth (8-bit, 10-bit, 12-bit).
- Image Scaling: SuperView III scaling algorithm for high-quality adaptive scaling.
- Special Functions: Image mosaic, layer flipping, input crop, and layer mask.


Electrical and Physical Specifications:
- Power Supply: 100–240V~, 3A, 50/60Hz
- Max Power Consumption: 120W
- Dimensions: 482.6 mm × 442.5 mm × 50.5 mm
- Weight: 7.5 kg (net), 12.1 kg (gross)
- Operating Temperature: 0°C to 45°C
- Certifications: CE, FCC, IC, RoHS compliant

3. What is HDR? HDR VS SDR
High Dynamic Range (HDR) is a technology that enhances the brightness, color gamut, and contrast of images, resulting in more vibrant and lifelike visuals. Compared to Standard Dynamic Range (SDR), HDR offers:
- Wider Color Gamut: Displays more colors, especially in bright and dark areas.
- Higher Brightness Levels: Supports peak brightness levels of up to 4000 nits.
- Deeper Color Depth: Provides richer details in shadows and highlights.
The HDR Master 4K LED Controller bridges the gap between SDR and HDR by intelligently analyzing SDR content and enhancing it to HDR standards. This ensures that even displays without native HDR support can deliver stunning visuals through NovaStar’s “Image Enhancement” functionality.

4. Core Advantages of HDR Master 4K LED Controller
This controller is renowned for its high cost-performance ratio, with mainstream market prices. Significant price variations exist across different sales channels due to differing service policies, as detailed below:
4.1 Exquisite Color Reproduction
The HDR Master 4K Processor reconstructs intricate details in both bright and dark areas, offering a wider color gamut and deeper color depth. This makes it perfect for applications such as stage control and fine-pitch LED screens.

4.2 Advanced Scaling Technology
Equipped with the SuperView III scaling algorithm, the device eliminates data loss, rough edges, and blurring. Every image is restored to its original quality, ensuring crisp and clear visuals.
4.3 Versatile Connectivity
With abundant 4K connectors, including HDMI 2.0, DP 1.2, and 12G-SDI, the HDR Master 4K LED Video Processor meets the demands of the most discerning users. It also supports SDI mosaic input and output, enabling flexible multi-source configurations.


4.4 Intelligent Monitoring and Backup
The built-in LCD screen allows real-time monitoring of input sources, while the self-test and status monitoring features ensure smooth operation. The input hot backup function guarantees uninterrupted performance, even in case of signal failure.

4.5 Customizable Output Settings
Users can adjust output parameters such as color space, sampling rate, bit depth, and gamma correction to achieve the desired visual impact. The device also supports adjustable contrast gain and low grayscale gain, avoiding overexposure and grayscale loss.
5. How Novastar HDR Master 4K LED Video Processor Works?
The HDR Master 4K operates using a combination of hardware-based processing and software-driven customization. Here’s how it works:
5.1 Input Source Selection
Connect your video source to one of the input connectors (HDMI 2.0, DP 1.2, or 12G-SDI). The device automatically identifies the input resolution and dynamic range.

5.2 SDR to HDR Conversion
Enable the SDR-to-HDR conversion function via the front panel or menu settings. The processor analyzes the SDR content and enhances it to HDR10 or HLG format, expanding the dynamic range and improving color accuracy.
5.3 Image Scaling and Optimization
Using the SuperView III scaling algorithm, the device scales the input image to match the output resolution. Users can adjust parameters like contrast gain, low grayscale gain, and black level settings to optimize the image quality.
5.4 Output Configuration
Select the desired output connector (HDMI 2.0, OPT, or 12G-SDI) and configure settings such as color space, bit depth, and sync polarity. For large-scale installations, use the image mosaic function to combine multiple devices seamlessly.

5.5 Monitoring and Control
Monitor the system status on the dedicated LCD screen. Use the front panel buttons and knob to navigate menus, adjust settings, and perform tasks like firmware updates or BKG/LOGO imports.
6. Novastar HDR Master 4K Price
The HDR Master 4K LED Price typically ranges between $4,400 and $5,400, depending on the region and distributor. While it may seem like a significant investment, the device’s advanced features, reliability, and versatility make it a cost-effective solution for professionals seeking top-tier video processing capabilities.

7. FAQs
8. Conclusion
The Novastar HDR Master 4K is a game-changer in the world of video processing. With its ability to convert SDR content into stunning HDR formats, advanced scaling technology, and versatile connectivity options, it sets a new standard for visual excellence. Whether you’re working on high-end rental projects, stage control systems, or fine-pitch LED walls, the HDR Master 4K LED Video Processor delivers unparalleled performance and reliability.
Investing in the HDR Master 4K Processor ensures that your visuals are not only breathtaking but also future-proof, ready to meet the demands of tomorrow’s display technologies. Explore the possibilities today and elevate your visual storytelling to new heights!
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