8K 1×4 HDMI 2.1 Splitter with Audio De-Embedding
40Gbps, HDCP 2.3, Optical + 3.5mm Audio Out, 4K@120Hz, VRR/ALLM, EDID DIP
Distribute one 8K HDMI 2.1 source to four displays with built-in audio de-embedding through optical S/PDIF and 3.5mm analog ports. The KanexPro SP-1X4A8K delivers 40Gbps bandwidth and supports resolutions up to 8K@60Hz 4:2:0 10-bit and 4K@120Hz 4:4:4 10-bit. Its audio extraction outputs connect to external amplifiers, soundbars, or powered speakers independently of the display audio.
HDMI 2.1 and HDCP 2.3 compliant. VRR, FVA, and ALLM for gaming. Full HDR pass-through (HDR10, HDR10+, Dolby Vision, HLG). Audio pass-through includes LPCM, Dolby TrueHD, DTS-HD Master Audio, DSD. Audio de-embedding: optical supports LPCM/Dolby/DTS up to 5.1CH; analog outputs PCM 2.0. 8-mode EDID DIP switch. Built-in equalizer, retiming, and driver. Metal enclosure (212 × 94 × 23 mm, 539 g), 9W max, Micro USB service port.
- HDMI 2.1 and HDCP 2.3 compliant
- Support 40Gbps video bandwidth
- Support video resolution up to 8K@60Hz 4:2:0 10bit, 8K@30Hz 4:4:4 10bit, 4K@120Hz 4:4:4 10bit
- VRR, FVA, ALLM supported
- Support HDR, HDR10, HDR10+, Dolby Vision, HLG pass through
- Support HDMI audio formats: LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, DTS, DTS-HD Master Audio, DSD
- Built-in Equalizer, Retiming and Driver
- Advanced EDID management (8-mode DIP switch)
- Support audio de-embedding function (output through optical and analog port)
- Compact design for easy and flexible installation
| Technical | |
|---|---|
| HDMI Compliance | HDMI 2.1 |
| HDCP Compliance | HDCP 2.3 |
| Video Bandwidth | 40Gbps |
| Video Resolution | Up to 8K@60Hz 4:2:0 10bit, 8K@30Hz 4:4:4 10bit, 4K@120Hz 4:4:4 10bit |
| Color Depth | 8/10/12-bit |
| Color Space | RGB, YCbCr 4:4:4 / 4:2:2, YUV 4:2:0 |
| HDR | HDR, HDR10, HDR10+, Dolby Vision, HLG |
| HDMI Audio | LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD |
| Audio De-Embed (Optical) | LPCM 2/5.1CH, Dolby Digital 2/5.1CH, DTS 2/5.1CH |
| Audio De-Embed (Analog) | PCM 2.0 |
| ESD Protection | ±8kV (air-gap) & ±4kV (contact) |
| Connection | |
| Input | 1 × HDMI IN [Type A, 19-pin female] |
| Output | 4 × HDMI OUT [Type A, 19-pin female], 1 × Optical [S/PDIF], 1 × L/R [3.5mm Stereo] |
| Control | 1 × SERVICE [Micro USB, Update port] |
| Mechanical | |
| Housing | Metal Enclosure |
| Color | Black |
| Dimensions | 212mm (W) × 94mm (D) × 23mm (H) |
| Weight | 539g |
| Power Supply | Input: AC 100–240V 50/60Hz, Output: DC 12V/2.5A (CE/FCC/UL certified) |
| Power Consumption | 9W (Max) |
| Operating Temperature | 0°C – 40°C / 32°F – 104°F |
| Storage Temperature | −20°C – 60°C / −4°F – 140°F |
| Relative Humidity | 20–90% RH (Non-condensing) |
| Package Contents | |
| Included | 1 × 8K HDMI 1×4 Splitter, 1 × 12V/2.5A Multinational Power Supply, 1 × User Manual |
What HDMI and HDCP versions?
Maximum resolution?
What are the EDID DIP settings?
Power supply?
No signal on outputs.
No audio from optical/analog.
Does this have auto downscaling?
What audio formats via optical?
What audio via 3.5mm analog?
SERVICE port?
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