Crisp A4L | Dual-Mode LED Display Controller with HDMI & Wi-Fi

Crisp Video HD A4L  (Crisp A4 L)

LED Display Controller for Digital Signage and HD Multimedia Playback

The Crisp HD-A4L is a compact, full-color LED screen controller designed for both synchronous and asynchronous playback of high-definition multimedia content. Ideal for small-pitch advertising displays, this controller offers flexible connectivity, built-in memory, and powerful video decoding—making it perfect for remote or standalone digital signage.

Crisp HD-A4L Competitive Differences

• Dual-mode support for both asynchronous and synchronous display control
• HDMI input/output with 60Hz full HD video playback and scaling
• Wi-Fi enabled with mobile app control for wireless programming and monitoring
• Auto device recognition via Controller ID—no IP configuration required
• Supports a maximum resolution of 1280×512; expandable up to 3840 pixels wide and 2048 pixels high
• Includes 8GB of internal flash memory with U-disk support for expansion
• Double track stereo 3.5mm audio output
• Unified multi-screen management via Internet or LAN

Crisp HD-A4L Description

The HD-A4L by Crisp is a versatile LED screen multimedia controller built to streamline content delivery for advertising and digital signage applications. It serves as the sending box in a complete system that includes a receiving card (R50X) and the HDPlayer software. With support for both synchronous and asynchronous modes, users can easily switch between real-time and offline content playback. This controller features built-in 8GB flash storage and supports various media types including video, images, GIFs, documents, and live content. HDMI input/output capabilities eliminate the need for an external video processor, as it supports zooming and full HD decoding natively. Easy to configure via Wi-Fi or LAN, the HD-A4L requires no IP setup, as devices are identified automatically by controller ID. It also includes integrated support for environmental monitoring (temperature, humidity, PM values), scheduling, and audio output—making it a robust, all-in-one solution for indoor and outdoor digital displays.

HD-A4L Features

• Supports indoor and outdoor full-color/single-color LED modules
• Compatible with conventional and PWM chips
• Scan mode support from static to 1/64 scan
• Integrated HD video decoding up to 60Hz
• Supports wide range of media formats: AVI, MP4, FLV, JPG, PNG, DOCX, PPTX, etc.
• Includes classic analog and digital clocks with image backgrounds
• Synchronized auto-zoom display without external video processor
• Remote management features: brightness, temperature, humidity, PM value

HD-A4L Specifications

• Control Range: 1280×512 resolution, up to 3840 (W) × 2048 (H) pixels
• Gray Scale: Adjustable from 256 to 65536
• Flash Memory: 8GB internal, expandable via USB/U-disk
• Video Output: HDMI, 60Hz frame rate
• Audio Output: 3.5mm stereo double track
• Communication: 100M/1000M RJ45 Ethernet, Wi-Fi, USB 2.0, optional 3G/4G
• Input Ports: 12V power, RJ45, USB, GPS, HDMI, test button, sensor port
• Output Ports: RJ45, audio, HDMI
• Operating Temperature: -40°F to 176°F (-40°C to 80°C)