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

LUOM

LUOM HDMI Audio Extractor Splitter HDMI to HDMI Optical RCA Stereo Audio Video Converter

SKU CH-S2BM-HWKK1

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

  • Product typeHDMI Converters
  • Extracts audio from HDMI to optical and RCA stereo outputs
  • Passes 4K video at 30 Hz with 36-bit deep colour intact
  • Three audio modes: pass-through, stereo PCM, 5.1 Dolby Digital or DTS
  • Works with Blu-ray players, consoles, streamers and PCs
  • LED indicators show power and HDMI link status

HDMI Audio Extractor with Optical and RCA Outputs

This LUOM converter splits the digital audio from an HDMI source and sends it to both an optical TOSLINK port and analogue RCA stereo jacks. The original video and audio pass through to the HDMI output unchanged. It handles 4K at 30 Hz, 1080p at 50 or 60 Hz and 3D content with deep colour up to 36-bit per channel. A red LED shows power and a green LED confirms a live display connection.

Suited for systems that need separate audio paths

Home-theatre owners who want to feed a soundbar, AV receiver or powered speakers while keeping the picture on a TV or projector will find the three audio modes — Pass, 2CH and 5.1CH — useful. Optical SPDIF carries 5.1-channel Dolby Digital and DTS; RCA carries two-channel PCM only. Buyers who need ARC support, Dolby Digital Plus decoding or audio extraction above 4K 30 Hz should look elsewhere.

Connects between an HDMI source and a display

Plug the source into the HDMI input and the display into the HDMI output; the extractor draws power from the included USB cable. Standard AWG26 HDMI cables run up to 49 ft without signal loss. The box frees the system from relying on the display’s audio outputs and lets older amplifiers or soundbars join a modern 4K chain.

How it compares

Measured against everything we stock in Video Signal Converters, at today’s prices. Recalculated every night.

Price $16.99
Typical for this category: the median of 1,459 items is $17.99.

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Specifications

Product
Product typeHDMI Converters

Questions about this item

Does this extractor need its own power supply to split audio from my 4K@30Hz source?

The unit draws power from the HDMI connection; a red LED lights when power is present and a green LED confirms a valid HDMI link to the display.

Will my older AV receiver that only accepts stereo RCA or 5.1 Dolby Digital via optical work with the three audio-mode settings?

Yes — set the switch to 2CH for stereo PCM on RCA, or 5.1CH for Dolby Digital or DTS bitstream on the optical TOSLINK output; the receiver will decode the bitstream normally.

How can I verify the extractor is passing 4K@30Hz video and the selected audio mode after I connect everything?

Check that the green LED is lit for video sync, then confirm on the display that 3840x2160@30Hz or 4096x2160@30Hz appears and that your receiver shows PCM 2.0 or Dolby Digital / DTS 5.1 matching the mode switch.

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