The EARC-EX330-K transmits HDMI ARC and eARC audio signals up to 100 meters (330 feet) using a single CAT6/7 cable, delivering high-resolution sound with zero compromise. Whether you're connecting a modern TV to an amplifier or AVR, this HDMI ARC over CAT6 solution ensures reliable audio delivery—ideal for immersive home theater or whole-home AV systems.
2. Full Compatibility with Advanced Audio Formats
This HDMI eARC extender supports a wide range of audio formats including Dolby Atmos, Dolby TrueHD, DTS-HD Master Audio, and uncompressed PCM 7.1—offering a true cinematic experience. With support for both HDMI eARC and S/PDIF, this eARC HDMI extender adapts seamlessly to advanced systems or legacy devices with ease.
3. S/PDIF Audio Path and CEC Remote Control
Even if your source lacks ARC or eARC functionality, the EARC-EX330-K features an independent S/PDIF channel to extend digital audio across long distances. CEC pass-through ensures remote control functionality is retained when using eARC, adding convenience to your ARC or eARC extender setup without sacrificing control.
4. Simple, Clean Installation with PoC and Plug-and-Play
With Power over Cable (PoC), only one unit—either transmitter or receiver—needs a power adapter, simplifying your wiring and reducing clutter. The compact, plug-and-play design makes it easy to integrate into any AV system, delivering the performance of an advanced eARC extender in a space-saving, installer-friendly package.
Setup
Compatibility
Dimensions
Includes
EARC-EX330-K: HDMI ARC/eARC & S/PDIF Audio Extender Up To 100m using CAT 6/7
Key Features:
Extend HDMI ARC/eARC or S/PDIF audio signal up to 100m/~330ft
High quality audio transmission over CAT 6/7 cable
Power over Cable technology; only requires power adapter at one end
Compact design and plug-and-play installation
The EARC-EX330-K can transmit HDMI ARC/eARC and S/PDIF audio signals up to 100m/~330ft over a single CAT 6/7 cable. It supports CEC pass-through between HDMI ARC/eARC input port and ARC/eARC output port. For TVs without an ARC/eARC port, the extender provides an independent S/PDIF audio pass-through channel to transmit S/PDIF audio from the S/PDIF IN port on the Transmitter to the S/PDIF OUT port on the Receiver. This is a fantastic plug and play solution for sending HDMI ARC/eARC and S/PDIF audio from a TV back to an amplifier, AVR or a multi-room audio system.
CONNECTIVITY
Transmitter:
INPUT:
1 × S/PDIF [Optical Audio Jack]
1× eARC [HDMI Type A, 19-pin female]
OUTPUT:
1× CAT [RJ45, female]
CONTROL:
1× SERVICE [Micro-USB]
Receiver:
INPUT:
1× CAT [RJ45, female]
OUTPUT:
1× S/PDIF [Optical Audio Jack]
1× eARC [HDMI Type A, 19-pin female]
CONTROL:
1× SERVICE [Micro-USB]
PACKAGE CONTENTS
1x Transmitter
1x Receiver
1x Power Adapter
User Manual
SUPPORTED CAT CABLES
CAT5e, CAT6, CAT7:
We recommend you use shielded CAT6 cables & High-Quality HDMI Cables for optimum performance
Yes, you can purchase these things directly from us. Please contact us & we will assist you further.
No, this product doesn not extend multiple screens. It will duplicate the input sources to multple outputs.
Yes, you will be able to get a signal beyond the mentioned distance but the quality of the video decreases with increase in the distance and that too when using with shielded CAT6 cable.
Yes, you can implement the daisy chain method.
Both the ends of the CAT cable should be termed as EIA-568B & the cable should be straight & not crossed.
We recommend you to use High-Quality HDMI cables & shielded CAT6 cables.
Yes, you can purchase the additional transmitter from us. Please contact us & we will let you know the price.
Yes, you can purchase the additional receiver from us. Please contact us & we will let you know the price.
No, this product doesn't upscale/downscale the video resolutions.
You can extend the display devices up to 400 Feet when using with a shielded CAT6 cable.
The issue might be with the CAT cable. This might be due to the external interference of the signals & CAT5e has low bandwidth as compared to the CAT6. We recommend you using shielded CAT6 cable.
If the power and link led lights does not illuminate on the RJ45 port of the transmitter and the receiver, then the transmitter & receiver might be dead.
Please contact us so that we can troubleshoot the issue.
You can upgrade the firmware by connecting the PC & this device via RS-232 cable.
Please note that this product only supports the CEC function between HDMI input & HDMI output 1.
No, optical output doesn't supports CEC due to its limitations. CEC will work only with HDMI devices.
HDBaseT is the technology used for long distance transmission of lossless signals, resulting extremely low latency & giving the best picture quality.
In normal extenders, if you extend your signals up to some extend, the quality of the signals will degrade & you may find some latency issues. HDBaseT is the lastest standard which provides extending your signals to the longer distance without degrading the quality of the signals & with 0 latency.
We recommend you using a shielded CAT6 cables for optimum performance.
Our all the extenders supports IR Frequency & the devices using RF frequency will not be compatible with our products.
The IR Blaster/Emitter should be connected to the IR out port on the Transmitter and the IR Receiver should be connected to the IR in on the Receiver.
EARC-EX330-K User Manual Download
