4×1 4K HDMI Switcher with ARC, Audio Extraction, and RS-232
KanexPro SW-4X1HDAUD 4x1 4K HDMI switcher with ARC, audio extraction, and RS-232. 18Gbps, HDCP 2.2, Dolby TrueHD/DTS-HD 7.1, optical + analog audio output.
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.
- 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
Specifications| HDMI Compliance | HDMI 2.0a, DVI 1.0 |
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| HDCP Compliance | HDCP 2.2 / HDCP 1.4 |
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| Video Bandwidth | 18Gbps |
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| Video Resolution | Up to 4Kx2K@60Hz, all HDMI 3D formats |
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| Audio Formats | PCM 2.1/5.1/7.1CH, Dolby 5.1, DTS 5.1, Dolby TrueHD, DTS-HD Master Audio |
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| ESD Protection | ±8kV (air-gap discharge) & ±4kV (contact discharge) |
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| Input | 4 x HDMI Female ports, 1 x IR Receive port, 1 x RS-232 port |
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| Output | 1 x HDMI Female port, 1 x L/R Analog & Optical audio port |
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| Dimensions | 180mm (D) x 85mm (W) x 11.6mm (H) |
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| Weight | 300g |
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| Power Consumption | 2.5W (Max) |
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| Power Supply | DC 5V/1A |
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| Operating Temperature | 0°C - 40°C / 32°F - 104°F |
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| Storage Temperature | −20°C - 60°C / −4°F - 140°F |
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| Included | 1 x HDMI 4x1 Switcher, 1 x 5V/1A Power Adapter, 1 x 38KHz IR Rx Cable, 1 x Optical Convert Header, 1 x IR Remote, 1 x Us |
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Questions
- 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.