KanexPro SP-HDMI2X4-8K HDMI Splitters

Switch 2 HDMI Inputs to 4 Screens with Auto-Scaling Video & Balanced/Digital Audio Breakout

Brand: KanexProModel: SP-HDMI2X4-8K

Switch two HDMI 2.1 sources to four displays at up to 8K@60Hz with independent downscaling and audio de-embedding on every output. The KanexPro SP-HDMI2X4-8K is a 48Gbps 2×4 HDMI matrix splitter that routes two sources to four screens — eliminating the need for a separate switcher, downscaler, or audio extractor in the rack. Compliant with HDMI 2.1 and HDCP 2.3, the matrix splitter supports 8K@60Hz 4:2:0 12-bit, 8K@30Hz 4:4:4 12-bit, and 4K@120Hz 4:4:4 12-bit with HDR10, HDR10+, Dolby Vision, HLG, and ALLM/VRR pass-through. Each output independently downscales 8K to 4K or 2K and converts HDR to SDR for mixed-resolution display environments. Audio de-embedding delivers digital optical (up to 5.1CH) and balanced/unbalanced analog stereo with adjustable gain. A built-in HDMI signal generator aids diagnostics. Control via front panel, IR remote, RS-232, or API commands.

Features

Routes 2 HDMI 2.1 sources to 4 displays at up to 8K@60Hz 4:2:0 12-bit with 48Gbps bandwidth — auto or manual input switching

HDCP 2.3 compliant with HDMI 2.1 — supports protected content across all input and output channels

HDR10, HDR10+, Dolby Vision, HLG pass-through with ALLM and VRR for low-latency gaming and cinematic playback

Independent 8K→4K/2K downscaling on each output — feed mixed-resolution displays from a single source without manual reconfiguration

Per-output HDR→SDR conversion preserves contrast and detail on non-HDR legacy displays

Audio de-embedding via digital optical (up to 5.1CH Dolby/DTS) and balanced/unbalanced analog stereo (L/R) with adjustable gain control

Built-in HDMI signal generator with 15 resolutions and 13 test patterns for on-site diagnostics and cable verification

Control via front panel buttons, IR remote, RS-232, and API commands — advanced EDID management with 16 presets, 2 user-defined, and pass-through mode

Attribute

Value

Model

SP-HDMI2X4-8K

HDMI Compliance

HDMI 2.1

HDCP Compliance

HDCP 2.3

Video Bandwidth

48 Gbps

Video Resolution

Up to 8K@60Hz 4:2:0 12-bit, 8K@30Hz 4:4:4 12-bit, 4K@120Hz 4:4:4 12-bit

Color Depth

8/10/12-bit

Color Space

RGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0

HDR Formats

HDR, HDR10, HDR10+, Dolby Vision, HLG

HDMI Audio (Pass-through)

LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, Dolby Atmos, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD

Audio De-embedding (Optical)

Up to LPCM/Dolby/DTS 5.1CH

Audio De-embedding (L/R)

LPCM 2CH

Analog Output Impedance

300 Ohm

Analog Output Level (Max)

8.2 dBu (2Vrms) balanced • 2.2 dBu (1Vrms) unbalanced

Frequency Response

20 Hz – 20 KHz (+0.5 dB, −1 dB)

Audio Output Sync Delay

0 to 2.2 ms

Audio S/N Ratio

99 dB @ 2Vrms, 1 kHz, A-weighted

Audio THD+N

<0.2% @ 0 dBV, 1 kHz

IR Level

12Vp-p

IR Frequency

Wideband 20K – 60 KHz

Transmission Distance

3 m / 9.8 ft over HDMI cable

ESD Protection

IEC 61000-4-2: ±8 kV (air-gap) & ±4 kV (contact)

Features

Specifications