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Small black box with HDMI ports and optical plus RCA audio outputs

ESTONE

ESTONE HDMI Audio Extractor 4K@30Hz Optical RCA 5.1CH Black

SKU CH-367T-QR8PV

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

  • Changer TypeHDMI
  • ColorBlack
  • Extract audio via optical SPDIF or RCA stereo outputs
  • Pass-through video up to 4K@30Hz with 36-bit deep color
  • Three audio modes: Pass, 2CH PCM, 5.1CH Dolby/DTS
  • LED indicators show power and HDTV connection status
  • Transmits up to 49 ft with AWG26 HDMI cable

Purpose and compatibility

The ESTONE HDMI Audio Extractor splits an HDMI source into a pass-through HDMI output plus optical TOSLINK and analog RCA stereo outputs. It serves owners of soundbars, AV receivers or amplifiers that lack HDMI inputs but accept digital or analog audio. The unit handles 4K@30Hz, 1080p and 3D signals with 24-bit to 36-bit deep color and HDCP 1.4 compliance.

Thermals noise and power

The adapter draws power from an external supply and runs without a fan, so it adds no audible noise to a living-room or studio setup. A red LED confirms power presence and a green LED signals a successful HDMI handshake. Typical power consumption stays low enough for the supplied adapter, and the aluminium enclosure dissipates heat passively during continuous operation.

Sustained load behaviour

During extended playback the extractor maintains stable 4K@30Hz video pass-through and consistent audio extraction across 2CH PCM, 5.1CH Dolby Digital and DTS formats on the optical port, while the RCA output remains limited to 2CH PCM. The 49ft transmission distance with AWG26 cable is preserved over long sessions. ARC is not supported, so TV-internal apps cannot return audio through this device.

Highlights

  • Extract audio via optical SPDIF or RCA stereo outputs
  • Pass-through video up to 4K@30Hz with 36-bit deep color
  • Three audio modes: Pass, 2CH PCM, 5.1CH Dolby/DTS
  • LED indicators show power and HDTV connection status
  • Transmits up to 49 ft with AWG26 HDMI cable

Specifications

Changer TypeHDMI
ColorBlack

Questions about this item

How do I connect the HDMI audio extractor between my source and display?

Connect the HDMI source to the input, the HDMI output to the TV or projector, then choose optical SPDIF or RCA L/R for audio. Select PASS, 2CH or 5.1CH mode to match your sound system.

Will the optical or RCA outputs need firmware updates or periodic replacement?

No firmware updates are required. The extractor is a passive converter with no moving parts; the optical TOSLINK and RCA connectors are rated for normal plug cycles and do not have a scheduled replacement interval.

What is the maximum cable length before 4K@30Hz video degrades?

The supplier specifies a transmission distance up to 49ft with an AWG26 HDMI standard cable for resolutions up to 3840x2160@30Hz or 4096x2160@30Hz.

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