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Small black aluminium box with HDMI ARC input and optical, coaxial, 3.5mm outputs

ESTONE

ESTONE HDMI ARC Audio Extractor 192KHz Toslink Coaxial 3.5mm Converter

SKU CH-EWVC-P421R

Extracts HDMI-compatible ARC audio to optical, coaxial and 3.5 mm outputs at up to 192 kHz sampling

  • TypeAudio Signal Converters
  • Connector A1 x HDMI ARC input
  • Connector B1 x Optical, Coaxial, 3.5mm jack output
  • Package Contents1 x Audio Adapter 1 x Type-c power cable 1 x Users Manual
  • Extract TV audio via ARC to optical, coaxial or 3.5mm
  • Supports 32, 44.1, 48, 96 and 192KHz sampling rates
  • Optical and coaxial carry 5.1CH, 3.5mm limited to 2.0CH
  • Plug-and-play ARC mode needs no extra setup
  • Aluminium alloy housing with noise-reduction and auto-mute circuits

HDMI ARC Audio Extractor

The ESTONE converter extracts audio from a TV HDMI ARC port and delivers it through optical Toslink, coaxial and 3.5mm stereo outputs. It supports sampling rates of 32, 44.1, 48, 96 and 192 KHz for high-resolution playback. Optical and coaxial connections handle 5.1 channel sound while the 3.5mm jack is limited to 2.0 channel PCM or LPCM audio. The aluminium alloy housing provides passive cooling for continuous operation.

TV ARC Port and Power Requirements

Verify that the television has an HDMI ARC port because the extractor will not function with a standard HDMI input. A USB Type-C power cable is included and must be connected for the device to operate. CEC control is not supported so the TV remote cannot adjust volume once ARC is active; volume must be set on the connected speaker, soundbar or receiver. No additional drivers or configuration are required after powering on.

Sustained Load Behaviour

The aluminium chassis dissipates heat during extended use without active cooling. High-end chips reduce digital noise and maintain signal gain across long listening sessions. An automatic mute function silences the outputs when no valid audio stream is detected, preventing hiss or pops during pauses. The unit continues to pass 5.1 channel audio through optical and coaxial paths without degradation over time.

Highlights

  • Extract TV audio via ARC to optical, coaxial or 3.5mm
  • Supports 32, 44.1, 48, 96 and 192KHz sampling rates
  • Optical and coaxial carry 5.1CH, 3.5mm limited to 2.0CH
  • Plug-and-play ARC mode needs no extra setup
  • Aluminium alloy housing with noise-reduction and auto-mute circuits

Specifications

TypeAudio Signal Converters
Connector A1 x HDMI ARC input
Connector B1 x Optical, Coaxial, 3.5mm jack output
Package Contents1 x Audio Adapter
1 x Type-c power cable
1 x Users Manual

Questions about this item

What cables and accessories come with the extractor and what must I provide separately?

The box includes the audio adapter, a USB-C power cable and a user manual; you will need to supply an HDMI cable for the TV ARC port and the optical, coaxial or 3.5 mm cable that matches your sound system.

Which output should I choose for 5.1 surround versus stereo headphones?

Optical and coaxial outputs support 5.1‑channel audio and are backward compatible with 2.0‑channel, while the 3.5 mm jack is limited to 2.0‑channel PCM/LPCM only.

What does the 192 KHz sampling rate mean for everyday use?

It indicates the converter can handle high‑resolution audio streams at 32, 44.1, 48, 96 and 192 KHz, so lossless music and movie soundtracks pass through without down‑sampling.

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