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4×1 4K HDMI Switcher with ARC, Audio Extraction, and RS-232

18Gbps, HDCP 2.2, Dolby TrueHD/DTS-HD 7.1, Smart EDID, Auto-Switch

SW-4X1HDAUDUPC 813982022966
In stock4×1 4K HDMI Switcher with ARC, Audio Extraction, and RS-232 – KanexPro SW-4X1HDAUD
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Overview

Route four 4K HDMI sources to a single display with integrated audio extraction and ARC — eliminating the need for a separate audio extractor or AVR upgrade. The KanexPro SW-4X1HDAUD is an 18Gbps HDMI 2.0a 4×1 switcher that combines source switching, audio de-embedding (optical S/PDIF + analog L/R), and Audio Return Channel in a single compact device. RS-232 control enables integration into managed AV environments.

Compliant with HDMI 2.0a, DVI 1.0, and HDCP 2.2/1.4, the switcher supports resolutions up to 4Kx2K@60Hz and all HDMI 3D formats. Audio pass-through supports PCM, Dolby TrueHD, and DTS-HD Master Audio up to 7.1 channels. Smart EDID management (Auto/2CH/5.1CH/7.1CH selectable) ensures reliable source/display negotiation. Switch inputs via front-panel button, IR remote, RS-232, or automatic detection. ARC extracts return audio from a connected TV to the optical/analog outputs. Compact metal enclosure, 2.5W max.

Key features
  • Compliant with HDMI 2.0a, DVI 1.0 standards
  • HDCP 2.2 and HDCP 1.4 compliant
  • Video formats up to 4Kx2K@60Hz and all HDMI 3D video formats
  • Support PCM, Dolby TrueHD, DTS-HD Master Audio up to 7.1CH
  • Digital and analog audio output
  • Support smart EDID management (Auto/2CH/5.1CH/7.1CH selectable)
  • Support input port auto switching or manual switching mode
  • Audio Return Channel (ARC) support
Technical
HDMI ComplianceHDMI 2.0a, DVI 1.0
HDCP ComplianceHDCP 2.2 / HDCP 1.4
Video Bandwidth18Gbps
Video ResolutionUp to 4Kx2K@60Hz, all HDMI 3D formats
Audio FormatsPCM 2.1/5.1/7.1CH, Dolby 5.1, DTS 5.1, Dolby TrueHD, DTS-HD Master Audio
ESD Protection±8kV (air-gap discharge) & ±4kV (contact discharge)
Connection
Input4 × HDMI Female ports, 1 × IR Receive port, 1 × RS-232 port
Output1 × HDMI Female port, 1 × L/R Analog & Optical audio port
Mechanical
Dimensions180mm (D) × 85mm (W) × 11.6mm (H)
Weight300g
Power Consumption2.5W (Max)
Power SupplyDC 5V/1A
Operating Temperature0°C – 40°C / 32°F – 104°F
Storage Temperature−20°C – 60°C / −4°F – 140°F
Package Contents
Included1 × HDMI 4×1 Switcher, 1 × 5V/1A Power Adapter, 1 × 38KHz IR Rx Cable, 1 × Optical Convert Header, 1 × IR Remote, 1 × User Manual
4×1 4K HDMI Switcher with ARC, Audio Extraction, and RS-232 panel drawing
4×1 4K HDMI Switcher with ARC, Audio Extraction, and RS-232 system diagram
4×1 4K HDMI Switcher with ARC, Audio Extraction, and RS-232 applications
ManualInstallation and operation
Spec sheetFull specification
Sales sheetFor bid packages
What HDMI and HDCP versions does this switcher support?
HDMI 2.0a, DVI 1.0, HDCP 2.2 and HDCP 1.4 with repeater function.
What is the maximum video resolution?
4Kx2K@60Hz (YCbCr 4:4:4) and all HDMI 3D formats at 18Gbps bandwidth.
How does ARC work on this device?
Enable ARC via the front-panel button or IR remote. The HDMI output receives return audio from the connected TV and routes it to the optical and analog audio outputs.
Does it support eARC?
No. The SW-4X1HDAUD supports standard ARC only. For eARC, consider an 8K-class switcher.
How do I set the EDID mode?
Press the EDID button on the front panel or IR remote to cycle through Auto, 2CH, 5.1CH, and 7.1CH modes. The corresponding LED indicates the active mode.
What power supply is required?
Included: 5V/1A DC adapter. Maximum power consumption is 2.5W.
No signal on the display after switching sources.
1) Verify HDMI cables are certified High Speed or Premium. 2) Try a different EDID mode. 3) Power-cycle the switcher. 4) Check that the source outputs a resolution supported by the display.
Audio is not coming through the optical or analog output.
1) Confirm ARC is enabled if using TV return audio. 2) Check EDID mode matches desired audio channel count. 3) Verify cable connections.
Does it pass HDR or Dolby Vision?
The manual does not explicitly list HDR pass-through. 18Gbps bandwidth can carry HDR10 in 4K@60Hz 4:2:0 but HDR metadata pass-through is not guaranteed.
What audio formats are supported?
PCM 2.1/5.1/7.1CH, Dolby 5.1, DTS 5.1, Dolby TrueHD, and DTS-HD Master Audio. Audio outputs via optical S/PDIF and analog L/R.
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