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Small black box with HDMI, optical and RCA ports, LED indicators

LUOM

LUOM HDMI Audio Extractor Splitter HDMI to HDMI Optical RCA Stereo Audio Out 4K@30Hz 1080P 3D

SKU CH-Y3GZ-WKABC

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

  • TypeHDMI Converters
  • Extract audio via optical SPDIF or RCA stereo while passing video through HDMI
  • Supports 4K at 30 Hz and 1080p 3D with 36-bit deep colour
  • Three audio modes — Pass, 2CH PCM and 5.1CH Dolby Digital or DTS
  • Optical output handles 5.1CH surround; RCA output delivers 2CH stereo
  • Works with consoles, streamers, Blu-ray players and PCs — no ARC support

Signal Extraction and Pass-Through

The LUOM HDMI audio extractor splits the digital audio embedded in an HDMI source and sends it to optical SPDIF and analogue RCA L/R outputs while passing the original video and audio through to an HDMI output. It is built for installers and home-theatre owners who need to feed a soundbar, AV receiver or amplifier from a source that only offers HDMI. The unit handles 4K at 30 Hz, 1080p and 3D signals with deep colour up to 36-bit per channel.

Audio Mode Selection and Format Support

A three-position switch selects PASS, 2CH or 5.1CH modes, changing how the extractor processes the incoming stream. Optical SPDIF carries 5.1CH Dolby Digital and DTS, while RCA L/R delivers 2CH PCM stereo; Dolby Digital Plus is not supported on the optical port. The HDMI path remains transparent for formats such as LPCM 7.1, DTS-HD and Dolby TrueHD, so the display receives the untouched signal.

Maximum Video Bandwidth Constraint

The converter is limited to HDMI 1.4b bandwidth, capping input resolution at 3840x2160 or 4096x2160 at 30 Hz with HDCP 1.4 compliance. Sources that require 4K at 60 Hz or HDMI 2.0 features will not operate at their full capability through this device. Transmission distance reaches 49 ft with standard AWG26 cable, and LED indicators confirm power and successful display handshake.

Highlights

  • Extract audio via optical SPDIF or RCA stereo while passing video through HDMI
  • Supports 4K at 30 Hz and 1080p 3D with 36-bit deep colour
  • Three audio modes — Pass, 2CH PCM and 5.1CH Dolby Digital or DTS
  • Optical output handles 5.1CH surround; RCA output delivers 2CH stereo
  • Works with consoles, streamers, Blu-ray players and PCs — no ARC support

Specifications

TypeHDMI Converters

Questions about this item

Does the HDMI output pass-through require any firmware updates to maintain 4K@30Hz compatibility?

No firmware updates are mentioned for the HDMI 1.4b pass-through. The extractor supports 3840x2160@30Hz and 4096x2160@30Hz input resolutions with HDCP 1.4 compliance built into the hardware.

Will the 49ft transmission limit cause signal degradation at 4K@30Hz before the audio extraction fails?

The 49ft distance is specified with AWG26 HDMI standard cable. Video pass-through and audio extraction share the same link budget, so cable quality determines when 4K@30Hz stability is lost.

How much heat does the unit generate when extracting 5.1CH Dolby Digital continuously for hours?

The red power LED and green connection LED are the only thermal indicators described. No operating temperature range or power-draw figure is provided to estimate sustained heat output.

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