Availability: 8 in stock
Long-Distance Audio Extension – Transmits HDMI ARC signals up to 492 ft (150 m) at 96kHz or 295 ft (90 m) at 192kHz over a single CAT cable.
S/PDIF Audio Extension – Extends audio up to 492 ft (150 m) at 96kHz for systems without HDMI ARC.
Multi-Format Audio Support – Compatible with PCM 2.0ch, Dolby 5.1ch, and DTS 5.1ch formats.
CEC Pass-Through – Maintains HDMI device control functions when ARC mode is active.
Plug-and-Play Operation – Quick, hassle-free installation with no drivers or setup required.
Compact Form Factor – Slim design allows discreet and flexible placement.
High-Fidelity Performance – Optimized for ultra-low jitter and stable, high-quality audio transmission.
The ARC-EX300-K is a compact HDMI ARC and S/PDIF audio extender designed to deliver high-fidelity audio transmission over long distances. Capable of extending HDMI ARC signals up to 492 feet (150 meters) at 96kHz or 295 feet (90 meters) at 192kHz over a single CAT cable, it offers a reliable, plug-and-play solution for routing audio from a TV back to an amplifier, AVR, or multi-room audio system.
For TVs without an ARC port, the device includes a dedicated S/PDIF audio pass-through channel, transmitting audio from the S/PDIF IN port on the transmitter to the S/PDIF OUT port on the receiver.
CEC pass-through is also supported when operating in HDMI ARC mode, allowing seamless control integration between connected devices. With ultra-low jitter and precision-engineered signal design, the ARC-EX300-K ensures uncompromised audio performance in both residential and professional AV installations.
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| Transmitter: | INPUT: | 1 × S/PDIF [Optical Audio Jack] |
| 1 × HDMI [Type A, 19-pin female] | ||
| 1 × DC 5V [Micro-USB] | ||
| OUTPUT: | 1 × CAT OUT [RJ45] | |
| Receiver: | INPUT: | 1 × CAT IN [RJ45] |
| 1 × DC 5V [Micro-USB] | ||
| OUTPUT: | 1 × S/PDIF [Optical Audio Jack] | |
| 1 × HDMI [Type A, 19-pin female] |
| 1x Transmitter |
| 1x Receiver |
| 2x USB Cable (USB-A to Micro USB) |
| 2x Power Adapter |
| User Manual |
| CAT5e, CAT6, CAT7: | We recommend you use shielded CAT6 cables & High-Quality HDMI Cables for optimum performance |
| ARC audio: | 495Ft – 96kHz / 295 – 192kHz |
| S/PDIF audio: | 495Ft – 96kHz |
| ARC/eARC: | Yes / No |
| CEC: | No |
| Transmission Technology : | Ethernet |
| IR Control: | No |
| PoC (Power over Cable): | No |
| RS-232: | No |
| USB Standard: | No |
| USB-C DP Alt Mode: | No |
| HDR10 / HDR10+ / Dolby Vision: | No / No / No |
| HDMI and Optical Audio Formats: | PCM 2.0ch, Dolby 5.1ch, DTS 5.1ch |
| HDMI Compliance | HDMI 2.0 |
| HDCP Compliance | HDCP 2.2 |
| Power Consumption: | Transmitter: 0.35W / Receiver: 0.7W | |
| Power Supply: | Input: AC 100-240V 50/60Hz | |
| Output: DC 5V/1A |
| Transmitter: | Length: | 90mm / 3.54in |
| Width: | 72mm / 2.84in | |
| Height: | 20mm / 0.79n | |
| Weight: | 175g / 6.17oz | |
| Receiver: | Length: | 90mm / 3.54in |
| Width: | 72mm / 2.84in | |
| Height: | 20mm / 0.79n | |
| Weight: | 175g / 6.17oz |
| Color: | Black |
| Housing: | Metal Enclosure |
| Operation Temperature: | 32~104°F / 0~40°C |
| Storage Temperature: | -4~140°F / -20~60°C |
| Operating Humidity: | 20~90% RH (Non-condensing) |
| 1-Year Manufacturer’s Warranty |
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