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Small black box with HDMI, optical, RCA ports and power socket

Jansicotek

Jansicotek 4K HDMI Audio Extractor Splitter 30Hz 36-bit 7.1ch

SKU CH-8C9S-C452H

Extracts audio from HDMI sources to optical SPDIF or RCA stereo while passing 4K 30 Hz 36-bit video to a display, with selectable 2.0, 5.1 or 7.1 channel modes

  • TypeAudio Splitters
  • AudioYes
  • Package Contents1x 4K HDMI Audio Extractor Converter 1x 5V Power Adapter 1x
  • Extracts audio to optical SPDIF or RCA stereo for external sound systems
  • Passes 4K video at 30 Hz with 36-bit deep colour to the display
  • Three audio modes — PASS, 2.0CH, 5.1CH — match source to your amplifier
  • Supports DTS-HD, Dolby TrueHD, LPCM 7.1 and other surround formats
  • Works with Blu-ray players, consoles, streaming sticks, PCs and more

4K HDMI Audio Extractor Splitter

This Jansicotek unit splits an HDMI source into a pass-through HDMI signal plus separate optical Toslink and RCA stereo outputs. It serves installers who need to feed a soundbar, AV receiver or amplifier while keeping the video path intact. The box includes a 5 V power adapter and a user manual.

HDMI 1.4b limits video to 4K at 30 Hz

The extractor complies with HDMI 1.4b and HDCP 1.4, so 4K resolution is capped at 30 Hz and 1080p remains fully supported. It does not support ARC, so the TV’s internal apps cannot send audio back through this device. Bandwidth is sufficient for 3D and deep-colour content within the 1.4b specification.

Three audio modes select the output format

A hardware switch chooses between PASS, 2.0CH and 5.1CH modes, determining whether the extractor forwards the original bitstream, down-mixes to stereo or outputs 5.1-channel LPCM. Supported codecs include DTS-HD, Dolby TrueHD, LPCM 7.1, DTS, Dolby AC3 and DSD. The setting must match the connected audio system’s capabilities.

Highlights

  • Extracts audio to optical SPDIF or RCA stereo for external sound systems
  • Passes 4K video at 30 Hz with 36-bit deep colour to the display
  • Three audio modes — PASS, 2.0CH, 5.1CH — match source to your amplifier
  • Supports DTS-HD, Dolby TrueHD, LPCM 7.1 and other surround formats
  • Works with Blu-ray players, consoles, streaming sticks, PCs and more

Specifications

TypeAudio Splitters
AudioYes
Package Contents1x 4K HDMI Audio Extractor Converter
1x 5V Power Adapter
1x User Manual

Questions about this item

Should I pick PASS, 2.0CH or 5.1CH mode for my setup?

Choose PASS to send the source format unchanged, 2.0CH for stereo-only systems, or 5.1CH when your soundbar or AV receiver supports surround sound.

What does 4K@30Hz mean for my display?

The extractor passes video up to 4K resolution at 30 frames per second with 36-bit deep colour; higher refresh rates are not supported.

Does this unit support ARC or eARC?

The extractor does not support ARC; it extracts audio from the HDMI input and sends it separately via optical SPDIF or RCA L/R outputs.

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