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4K HDR HDBaseT™ Extender Set Featuring ARC or optical audio return (4K: 70m/230ft | 1080p: 100m/328ft)


Supporting the latest 4K UltraHD and HDR content, source and display devices in any residential or commercial setting, the EX-70-H2X-ARC allows you to free the audio from on-demand content within a SmartTV with ARC or optical audio return functionality.

With Class A HDBaseT™ handling the distribution of video, HD audio, power and control, and support for the latest 4K UHD standards, the EX-70-H2X-ARC includes a revised chipset for increased compatibility with new 4K UHD source devices for full 4K@60Hz 4:2:0 over distances up to 70m/230ft and 1080p@60Hz/48bit up to 100m/328ft, including two-way IR and serial control.



Support for HDR

Transmission of HDR-10 content is nothing new to WyreStorm; we’ve been sending this high-bandwidth content, native & uncompressed over long distances since the introduction of our first H2 extender in 2015. The H2X-ARC is no different, sending pixel-perfect 4K UHD 4:2:0 10-bit @24Hz at distances up to 70m/230ft.

On-demand audio

Free the audio from on-demand 4K HDR and 1080p content within a SmartTV with the WyreStorm EX-70-H2X-ARC HDBaseT™ extender supporting ARC (Audio Return Channel) or optical audio return.

Audio De-embed

Fully-featured audio performance doesn’t stop at the ability to handle ARC, the receiver unit offers the ability to extract 5.1 audio from the HDBaseT™ link and connect to an AVR local to the zone.

Full HDBaseT Chipset

Class A HDBaseT™ handles the distribution of the latest 4K video standards, HD audio, power, Ethernet and control.


  • 4K UltraHD extender set capable of transmitting AV content over long distances using single cable Cat6 cable
  • Supports all high definition resolutions including 4K UHD @30hz 4:4:4 24bit | 4K HDR @24Hz 4:2:0 10bit (BT.2020) - see specifications for details
  • Robust Class A HDBaseT™ transmission technology for stable distribution and control of 4K HDR transmission up to 70m/230ft or 1080p @60Hz 36bit up to 100m/328ft
  • HDBaseT™ feature set supporting distribution of video, audio, control, power and Ethernet passthrough
  • Audio Return Channel and optical audio return support
  • TOSLINK input on Receiver allows for TV models without ARC-over-HDMI support
  • Receiver includes audio out for source audio de-embed
  • Switchable audio de-embed or ARC breakout on Transmitter
  • Supports 2ch PCM and 7.1 multichannel audio up to DTS-X and Dolby Atmos
  • HDCP 2.2 compliant
  • 3D compatible
  • 2-way PoH (Power-over-HDBaseT™) enables either Transmitter or Receiver to be remotely powered for for flexible installation options
  • Transmits discreet wide-band bidirectional IR/RS-232 control signals together with HDMI over a single Cat5e/6 cable
  • Switchable RS-232 function mode on transmitter and receiver for firmware update.
  • Slimline chassis of 25mm for easier, more convenient installations behind screens at display zones.
  • EDID adjustment on transmitter (TX) for preset, stored or recalled settings to negotiate communication between connected source/display devices for enhanced compatibility between source/display devices
  • Threaded bushings allow use of both standard and locking DC power plugs
  • Visual LED indication for power, display connection signal status, HDBaseT™ link, and HDCP presence in signal.
  • Cable termination follows IEEE-568B standards
  • Automatically adjusts feedback, equalization and amplification of signal for easy installation
  • Energy efficient universal power supply included
  • Mounting brackets included


Audio and Video

Inputs 1x HDMI 19-pin type A
1x HDBaseT™ 8-pin RJ-45 female
Outputs 1x HDBaseT™ 8-pin RJ-45 female
1x HDMI 19-pin type A
Audio Formats HDMI: 2ch and Up to DTS-X and Dolby Atmos
RX S/PDIF IN: 2ch PCM | Up to DTS digital and Dolby digital
Max. Video Resolution HDMI
1920x1080 @24/25/30/60Hz 36bit (15m/50ft)
3840x2160p @24/25/30Hz 4:4:4 24bit (7m/23ft)
4096x2160p @60Hz 24bit 4:2:0 (7m/23ft)
Using Cat6
1920x1080p @24/25/30/60Hz 36bit (100m/328ft)
3840x2160p @24/25/30Hz 4:4:4 24bit (70m/230ft)
4096x2160p @60Hz 4:2:0 24bit (70m/230ft)
Using Cat6a/7
1920x1080 @24/25/30/60Hz 36bit (100m/328ft)
3840x2160p @24/25/30Hz 4:4:4 24bit (100m/328ft)
4096x2160p @60Hz 4:2:0 24bit (100m/328ft)
Color Depth 1080p: 16bit | 4K UHD: 8bit
Maximum Pixel Clock 297mHz

Communication and Control

HDMI HDMI 2.0 | HDCP 2.2 | EDID | ARC| DVI/D supported with adapter (not included)
HDBaseT™ HDMI 2.0 | HDCP 2.2 | EDID | ARC | 2-way PoH | Bidirectional IR, RS-232, and Ethernet
IR 1x IR TX 3.5mm (1/8in) Mono | Bidirectional over HDBaseT™
1x IR RX 3.5mm (1/8in) Stereo | Bidirectional over HDBaseT™
RS-232 1x 3-pin Screw Down Phoenix Connector | Bidirectional over HDBaseT™
Ethernet 1x 8-pin RJ-45 female | 10/100 Mbps auto-negotiating | Bidirectional over HDBaseT™
ARC (Audio Return Channel) Returns audio from display or separate source to the transmitter for use with an AVR or other device.


Power Supply Input: 100~240V AC 50/60Hz | Output: 12V DC 2A
Max Power Consumption 26.5W
PoH 48V 15.4W (each HDBaseT™ out)


Operating Temperature 32°F ~ 113°F (0°C ~ 45°C)
10% ~ 90%, non-condensing
StorageTemperature -4°F to ~ 158°F (-20°C ~ +70°C)
10% ~ 90%, non-condensing
Maximum BTU 90.42 BTU/hr

Dimensions & Weight

Rack Units/Wall Box 0.56U
Height 25mm/1in
Width 220mm/8.67in
Depth 90mm/3.55in
Weight 0.66kg/1.45lbs


Safety and Emission CE

Case Studies