Name: 8K HDMI eARC Audio Adapter
Brand: KanexPro
SKU: AUD-EARC-8K

Question 1

What audio formats are supported on the HDMI outputs?

Accepted Answer

LPCM 7.1CH, Dolby TrueHD, Dolby Atmos, DTS-HD Master Audio, and DTS:X.

Question 2

Does the analog L/R output on AUD-EARC-8K downmix Dolby Digital or DTS to stereo?

Accepted Answer

No. The analog L/R output on AUD-EARC-8K does not downmix or decode Dolby Digital or DTS bitstreams. It only outputs sound when the incoming audio is PCM; it stays silent if the source sends a Dolby Digital or DTS bitstream.

Question 3

Does the analog L/R output on AUD-EARC-8K downmix multichannel LPCM to stereo?

Accepted Answer

No. The analog L/R output on AUD-EARC-8K does not downmix or decode multichannel audio. It only supports PCM 2.0, so it produces no audio if the eARC source sends multichannel LPCM (5.1/7.1) or a Dolby Digital/DTS bitstream. Set the TV's eARC audio output to PCM 2.0 (stereo) for L/R output to work.

Question 4

Does the AUD-EARC-8K analog L/R output downmix Dolby, DTS or multichannel PCM audio to stereo?

Accepted Answer

No. The AUD-EARC-8K does not decode or downmix audio. Each output carries the input format unchanged and plays only formats it supports. The analog L/R output supports PCM 2.0 only, so set the TV or source audio output to PCM 2.0 to get sound on L/R.

Question 5

How do I set EDID?

Accepted Answer

Use the 8-position DIP switch. 8 preconfigured profiles in FRL12G and FRL10G across 2.0/5.1/7.1CH modes. No software required.

Question 6

Can this feed both a soundbar and an amplifier simultaneously?

Accepted Answer

Yes — Soundbar eARC HDMI OUT and Amp AUDIO HDMI OUT are both active simultaneously, along with optical and L/R.

Question 7

Does it support Sonos Arc and Beam?

Accepted Answer

Yes — the Soundbar eARC OUT delivers full Dolby Atmos and DTS:X to SONOS ARC, Beam, and any eARC-compatible soundbar.

Question 8

What power supply is required?

Accepted Answer

Included 5V/2A multinational supply (CE/FCC/UL, AC 100-240V 50/60Hz). Max 5.2W.

Question 9

What HDMI cable length is recommended for 8K?

Accepted Answer

Ultra High Speed HDMI 2.1 up to 3m/10ft for 8K; up to 8m/26ft for 4K@60Hz.

Question 10

The eARC LED is flashing — what does that mean?

Accepted Answer

eARC mode is enabled but CEC communication is not working properly. Check CEC settings on the TV and connected devices.