KAMEHA KA279 2x4 HDMI 18Gbps Splitter  8K Ready Ultra HD Signal Distributor

KAMEHA KA279 8K HDMI 2×4 Splitter – 48Gbps HDMI 2.1 Matrix Distributor

Dual Input Quad Output 8K60Hz Downscaling Audio De-Embedding

Product Introduction

The KAMEHA KA279 is a professional-grade HDMI 2.1 2×4 splitter designed to switch and distribute 2 HDMI input sources to 4 HDMI outputs simultaneously. With ultra-high bandwidth of 48Gbps, it supports resolutions up to 8K@60Hz 4:2:0 12bit, delivering exceptional clarity, color depth, and smooth motion performance.

Each output independently supports 8K → 4K/2K downscaling and HDR to SDR conversion, ensuring compatibility with legacy displays while maintaining optimal image quality. Integrated digital and analog audio de-embeddingmakes it ideal for AV integration systems, retail displays, digital signage, conference rooms, and control centers.

Product Description

The KA279 combines advanced switching, signal distribution, and audio management into one powerful device. It supports both auto and manual input switching, with flexible control via front panel buttons, IR remote, RS-232, and API commands for system integration.

A built-in HDMI signal generator helps diagnose connection status of HDMI devices and cables, simplifying troubleshooting during installation. Advanced EDID management, built-in equalizer, retiming, and signal driver ensure stable long-distance transmission and reliable 24/7 performance.

Designed for professional AV environments, the KA279 delivers seamless 8K distribution with full HDR compatibility and advanced audio extraction capabilities.

Key Features

•  2 HDMI Inputs → 4 HDMI Outputs (Synchronous Distribution)

• HDMI 2.1 / HDCP 2.3 Compliant

•  48Gbps Ultra High Bandwidth

• Supports up to:

  • 8K@60Hz 4:2:0 12bit

  • 8K@30Hz 4:4:4 12bit

  • 4K@120Hz 4:4:4 12bit

• HDR / HDR10 / HDR10+ / Dolby Vision / HLG

• ALLM / VRR Pass-Through

• Independent 8K → 4K/2K Downscaling per Output

• Independent HDR to SDR Conversion per Output

• Digital Optical & Analog Audio De-Embedding

• Balanced / Unbalanced Analog Audio with Gain Control

• Auto & Manual Input Switching

• Front Panel / IR Remote / RS-232 / API Control

• Built-in HDMI Signal Generator for Diagnostics

• Advanced EDID Management

• Built-in Equalizer, Retiming & Signal Driver

• ESD Protection (±8kV Air / ±4kV Contact)

Technical Specifications

Video

• HDMI Compliance: HDMI 2.1

• HDCP Compliance: HDCP 2.3

• Video Bandwidth: 48Gbps

• Color Depth: 8 / 10 / 12-bit

• Color Space: RGB, YCbCr 4:4:4 / 4:2:2 / 4:2:0

• HDR: HDR, HDR10, HDR10+, Dolby Vision, HLG

Audio

HDMI Input/Output Formats:
LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, Dolby Atmos, DTS, DTS-HD Master Audio, DSD

Audio De-Embedding Output:

• Optical: LPCM / Dolby / DTS 5.1CH

• Analog L/R: LPCM 2CH

Audio Performance:

• Output Impedance: 300Ω

• Balanced Output: 8.2dBu (2Vrms)

• Unbalanced Output: 2.2dBu (1Vrms)

• Frequency Response: 20Hz–20KHz

• S/N Ratio: 99dB

• THD+N: <0.2%

Connections

Inputs:

• 2× HDMI Type-A

Outputs:

• 4× HDMI Type-A

• 1× Optical (S/PDIF)

• 1× Analog L/R (5-pin Phoenix)

Control Ports:

• 1× RS-232

• 1× IR Control

• 1× USB-C (Firmware Upgrade)

Protection

• ESD Protection: IEC 61000-4-2

  • ±8kV Air Discharge

  • ±4kV Contact Discharge

Professional Solutions & Applications

The KAMEHA KA279 8K HDMI 2×4 Splitter is ideal for:

AV System Integration
Digital Signage & Retail Display
Exhibition & Showroom Setup
Conference & Control Room
Gaming & eSports Environment
Broadcasting & Studio Applications
Home Theater with Multi-Display Distribution

It provides a complete 8K signal management and audio extraction solution, ensuring maximum compatibility between new-generation 8K displays and legacy 4K/1080p monitors.