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Small black box with HDMI ports, optical and RCA outputs, red and green LEDs

LUOM

LUOM HDMI Audio Extractor 4K@30Hz Optical RCA Splitter

SKU CH-HSBQ-17MZ1

Extracts HDMI audio to optical TOSLINK and RCA stereo while passing 4K@30Hz video to a display

  • TypeHDMI Converters
  • Extracts HDMI audio to optical or RCA outputs
  • Passes 4K@30Hz video through HDMI 1.4b with HDCP 1.4
  • Three audio modes: Pass, 2CH PCM, 5.1CH Dolby/DTS
  • Optical SPDIF supports 5.1CH; RCA stereo for 2CH PCM
  • LED indicators show power and HDMI link status

What this extractor does

The LUOM HDMI audio extractor splits the digital audio from an HDMI source into optical TOSLINK SPDIF and analogue RCA L/R stereo outputs while passing the original video and audio through to an HDMI output. It handles resolutions up to 4K at 30 Hz, 1080p Full HD, 3D and 36-bit deep colour. The unit is aimed at users who need to feed a soundbar, AV receiver or amplifier from sources such as Blu-ray players, game consoles, streaming sticks or set-top boxes.

Installation and common issues

Connect the source to the HDMI input, the display to the HDMI output, and your audio system to either the optical or RCA jacks; a red LED shows power and a green LED confirms a valid HDMI link. The three-position switch selects Pass, 2CH or 5.1CH audio modes — choose 2CH for RCA stereo and 5.1CH for optical Dolby Digital or DTS. The extractor does not support ARC or Dolby Digital Plus, and PS3 is limited to 2CH output, so verify your source matches the chosen mode before assuming a fault.

The deciding specification

Maximum supported video resolution is 4K at 30 Hz with HDMI 1.4b and HDCP 1.4 compliance. If your display or source requires 4K at 60 Hz, HDMI 2.0 bandwidth or HDCP 2.2, this extractor will not pass the signal correctly.

Highlights

  • Extracts HDMI audio to optical or RCA outputs
  • Passes 4K@30Hz video through HDMI 1.4b with HDCP 1.4
  • Three audio modes: Pass, 2CH PCM, 5.1CH Dolby/DTS
  • Optical SPDIF supports 5.1CH; RCA stereo for 2CH PCM
  • LED indicators show power and HDMI link status

Specifications

TypeHDMI Converters

Questions about this item

How do I confirm the LUOM extractor is working after connecting it?

The red LED lights when the unit is powered, and the green LED lights once a successful HDMI connection to the display is detected.

What comes in the box and what must I provide separately?

The converter itself is included; you must supply HDMI cables for the source and display, plus an optical TOSLINK cable or RCA stereo cable for the audio output you want to use.

Which audio mode — PASS, 2CH or 5.1CH — should I select for my setup?

Choose PASS to forward the original format, 2CH for stereo PCM on both optical and RCA outputs, or 5.1CH for Dolby Digital or DTS on the optical output (RCA remains stereo PCM).

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