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Avid Contributor I
June 22, 2025
Answered

Supplied HDMI cable with Sonos Arc Ultra

Simple question. Can someone please confirm which type of hdmi cable is supplied with the Sonos Arc Ultra in the UK. Thanks. 

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Corry P
Corry PAnswer
Sonos Staff
June 26, 2025

Hi ​@isthatmysandwich 

Welcome to the Sonos Community!

In direct answer to your question, Sonos supplies HDMI 2.0 cables.

The following response from ​@Rhonny is correct:

​@isthatmysandwich 

1.4 is generally fine for streaming services’ Atmos.

2.0 is needed for TrueHD Atmos via Blu-ray for example.

We used to supply HDMI 1.4 cables with the Beam, for example, but with Beam 2, Arc and Arc Ultra, we now supply HDMI 2.0 cables for use with eARC.

I hope this helps.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

36 replies

Prodigy III
June 22, 2025

​@isthatmysandwich 

1.4 is fine for streaming services’ Atmos.

2.0 is needed for TrueHD Atmos via Blu-ray for example.

Thanks Rhonny. I have a lot of 4k/atmos Blu-rays which I suppose is the main reason for my query as I don’t know which cable I have. I’m kinda new to this atmos lark and I’m not entirely sure that I’m getting the full benefit. 

I’m pretty sure Sonos wouldn’t provide a legacy spec cable for their flagship. BUT if you don’t get what you need in terms of audio delivery, replace with a better one. Just don’t spend a fortune on gold-embellished or diamond-encrusted cables etc! A £10/$10 (at most) cable would be fine. 

Mr. T
June 22, 2025

The Sonos supplied hdmi cable can carry all supported audio formats.

Avid Contributor I
June 22, 2025

The Sonos supplied hdmi cable can carry all supported audio formats.

Thanks 👍👍

Avid Contributor I
June 22, 2025

​@isthatmysandwich 

1.4 is fine for streaming services’ Atmos.

2.0 is needed for TrueHD Atmos via Blu-ray for example.

Thanks Rhonny. I have a lot of 4k/atmos Blu-rays which I suppose is the main reason for my query as I don’t know which cable I have. I’m kinda new to this atmos lark and I’m not entirely sure that I’m getting the full benefit. 

I’m pretty sure Sonos wouldn’t provide a legacy spec cable for their flagship. BUT if you don’t get what you need in terms of audio delivery, replace with a better one. Just don’t spend a fortune on gold-embellished or diamond-encrusted cables etc! A £10/$10 (at most) cable would be fine. 

Cheers for that. I wouldn’t need to ask if only sonos would verify which cable is provided. I might just go ahead and buy a 2. cable for no other reason that I would know which cable I had. Whether or not I could tell the difference is another matter 😂😂

Mr. T
June 22, 2025

If you want a previous response to Sonos on this, then you can find one here.

Same applies to the supplied cable for the Arc Ultra.

Avid Contributor I
June 22, 2025

If you want a previous response to Sonos on this, then you can find one here.

Same applies to the supplied cable for the Arc Ultra.

Thanks again Mr T. I’m probably creating an issue where there isn’t one but just to appease my curiosity I’ll probably get an HDMI 2.0 or HDMI 2.1. If I can’t tell the difference, which I suspect to be the case, there’s no harm done. 

Mr. T
June 22, 2025

I’d be more worried about what audio format you can send to the Arc Ultra, rather than the supplied cable.

Avid Contributor I
June 22, 2025

I’d be more worried about what audio format you can send to the Arc Ultra, rather than the supplied cable.

Well, I do stream content but I also have a small collection of film and music Atmos Blu-rays. On the Blu-ray screen I select Dolby Atmos. When the Blu-ray is playing I check the display on screen and it says True Dolby 7.1. According to the Sonos app I am receiving Dolby Atmos. Does that sound right. The fact that the display on the Blu-ray says True Dolby 7.1 instead of Atmos bothers me. Or is this what I should be seeing ????

Mr. T
June 22, 2025

I’d be more worried about what audio format you can send to the Arc Ultra, rather than the supplied cable.

Well, I do stream content but I also have a small collection of film and music Atmos Blu-rays. On the Blu-ray screen I select Dolby Atmos. When the Blu-ray is playing I check the display on screen and it says True Dolby 7.1. According to the Sonos app I am receiving Dolby Atmos. Does that sound right. The fact that the display on the Blu-ray says True Dolby 7.1 instead of Atmos bothers me. Or is this what I should be seeing ????

It seems reasonable to me, but stand to be corrected by anyone more familiar.

Previously, the Sonos app would indicate the exact type of Dolby Atmos being played, but now any atmos is just shown by the Dolby Atmos label.

From what I understand, the Blu-ray showing True Dolby 7.1 is just how some players show the audio info, rather than stating Atmos specifically.

Avid Contributor I
June 22, 2025

I’d be more worried about what audio format you can send to the Arc Ultra, rather than the supplied cable.

Well, I do stream content but I also have a small collection of film and music Atmos Blu-rays. On the Blu-ray screen I select Dolby Atmos. When the Blu-ray is playing I check the display on screen and it says True Dolby 7.1. According to the Sonos app I am receiving Dolby Atmos. Does that sound right. The fact that the display on the Blu-ray says True Dolby 7.1 instead of Atmos bothers me. Or is this what I should be seeing ????

It seems reasonable to me, but stand to be corrected by anyone more familiar.

Previously, the Sonos app would indicate the exact type of Dolby Atmos being played, but now any atmos is just shown by the Dolby Atmos label.

From what I understand, the Blu-ray showing True Dolby 7.1 is just how some players show the audio info, rather than stating Atmos specifically.

Thanks Mr T. That’s resolved my concerns. Cheers 👍👍