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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 Converter

SKU CH-H1D8-B7GN2

Splits HDMI into HDMI video plus optical SPDIF and RCA stereo outputs with selectable 2.0 or 5.1 channel modes for 4K@30 Hz and 1080p@50/60 Hz sources

  • TypeHDMI Converters
  • Extract audio to optical or RCA while passing 4K video through HDMI
  • Three audio modes — Pass, 2CH, 5.1CH — for flexible sound setup
  • Optical output carries 5.1CH Dolby Digital and DTS; RCA delivers 2CH PCM stereo
  • Supports 4K at 30 Hz, 3D and 36-bit deep colour over HDMI 1.4b
  • LED indicators show power status and successful HDMI connection

Purpose and Audience

The LUOM HDMI Audio Extractor splits an HDMI source into a pass-through HDMI video output plus separate optical SPDIF and analogue RCA stereo outputs. It serves installers and home-cinema owners who need to feed a soundbar, AV receiver or amplifier while keeping the picture on a TV or projector.

Deciding Specification

The unit handles video up to 4K at 30 Hz with 36-bit deep colour and HDCP 1.4 compliance, but it does not support ARC or Dolby Digital Plus. If your source only outputs 4K at 60 Hz or requires ARC, this converter will not pass the signal correctly.

Build Integration

Connect the HDMI source to the input, run the HDMI output to the display, and route optical or RCA cables to the audio system. A USB power cable is required for operation, and the box indicates power and link status with red and green LEDs. Transmission reaches 49 ft with standard AWG26 HDMI cable.

Highlights

  • Extract audio to optical or RCA while passing 4K video through HDMI
  • Three audio modes — Pass, 2CH, 5.1CH — for flexible sound setup
  • Optical output carries 5.1CH Dolby Digital and DTS; RCA delivers 2CH PCM stereo
  • Supports 4K at 30 Hz, 3D and 36-bit deep colour over HDMI 1.4b
  • LED indicators show power status and successful HDMI connection

Specifications

TypeHDMI Converters

Questions about this item

What does the 4K 30Hz rating mean for my display?

The extractor passes video up to 3840x2160 or 4096x2160 at 30 frames per second, so a 4K screen will show its native resolution but only at 30Hz rather than 60Hz.

Which HDMI version does the extractor use and what does it limit?

It uses HDMI 1.4b with HDCP 1.4, which caps the video path at 4K 30Hz and prevents ARC functionality.

What cable length can I run between my source and the extractor?

The manufacturer specifies a maximum transmission distance of 49ft when using an AWG26 standard HDMI cable.

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