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Contributor I
August 20, 2025
Answered

Era 100 and projector

I was wondering if the auxiliary jack cable for the Sonos Ace is compatible with the Era 100, since there is a USB-C to jack adapter but I would also need to add a jack-to-jack cable to connect to my video projector.

Thanks in advance for your help

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Corry P
Corry PAnswer
Sonos Staff
August 20, 2025

Hi ​@Gualandi0 

Welcome to the Community!

Thanks for your question, but I feel a little clarity is needed here.

Yes - the 3.5mm to USB-C cable that comes supplied with the Ace headphones can be used for a line-in connection to an Era 100 (or Era 300, or Move 2), bypassing the need for a Sonos Adaptor.

In addition, the Sonos Adaptor can be used as an (unrecommended) alternative to the Ace’s supplied cable (though a 3.5mm to 3.5mm cable would be needed too).

As the others have rightly (but superfluously) stated, you cannot use the cable to listen to content the Era is playing on your Ace headphones.

I hope this helps.

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

7 replies

Senior Virtuoso
August 20, 2025

Connecting to the Era 100 line-in will have an unavoidable 70msec delay in the audio, which results in lip-sync issues. Most find this lack of sync too distracting. Sonos soundbars reduce this delay, hence them as the recommended devices for home theatre systems. 
That doesn’t directly answer the question, but might make it moot? 

Gualandi0Author
Contributor I
August 20, 2025

Thanks, it will not distract me 

just wanted to know if I can use this accessory on my era 100

Airgetlam
August 20, 2025

Unless I’m mistaken, USB-C cables are all the same design, otherwise they can’t be called USB-C. 
 

 

Bruce
jgatie
August 20, 2025

Whoa, wait.  The USB-C port on the Era 100 is an input, not an output.  If your intention is to connect the Ace to the Era via USB (or even via 3.5 mm analog) in order to listen to the Era content on the Ace, it’s not going to work.

Airgetlam
August 20, 2025

Ah. Perhaps I misunderstood the question. ​@jgatie is absolutely correct. USB-C is indeed USB-C, but line ins are not the same as line outs. 

Bruce
Corry P
Corry PAnswer
Sonos Staff
August 20, 2025

Hi ​@Gualandi0 

Welcome to the Community!

Thanks for your question, but I feel a little clarity is needed here.

Yes - the 3.5mm to USB-C cable that comes supplied with the Ace headphones can be used for a line-in connection to an Era 100 (or Era 300, or Move 2), bypassing the need for a Sonos Adaptor.

In addition, the Sonos Adaptor can be used as an (unrecommended) alternative to the Ace’s supplied cable (though a 3.5mm to 3.5mm cable would be needed too).

As the others have rightly (but superfluously) stated, you cannot use the cable to listen to content the Era is playing on your Ace headphones.

I hope this helps.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein
Gualandi0Author
Contributor I
August 21, 2025

It’s for a line-in not a line-out

 

thanks for your responses