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Are there any line in adapter alternatives apart from the one Sonos provides?


Can’t currently get my hands on the adapter that sonos sells separately. Was wondering if anyone has found an alternative. Thanks 

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Best answer by controlav 8 April 2023, 15:25

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Userlevel 7
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No-one has found an alternative.

Lots of people think a headphone adapter will work,and they are very, very mistaken.

Userlevel 6
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I don’t think so - as stated by @controlav above

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So Sonos is willing to sell us a $250 or $450 speaker. But incapable of providing a straightforward dongle so a PC or Mac can send its signal to the speaker. But that’s the reason I bought the speakers.

Probably 75%, as a guess, will use them as surround speakers, in which the line in is disabled. Sonos is both saving needless expenditure, avoiding needless pollution, and keeping prices as low as possible. 

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Probably 75%, as a guess, will use them as surround speakers, in which the line in is disabled. Sonos is both saving needless expenditure, avoiding needless pollution, and keeping prices as low as possible. 

… and also avoiding their promise to make the speakers work as advertised.

I bought the speaker because of this function as well so really disappointed I have a 350$ speaker with no use for several months now if ever they have stock in my area. This experience alone makes me not like Sonos and I spent $$$ money to convert my whole house to in ceiling, surround etc. They should include a 20$ dongle and eat the cost as that is the main selling feature and why I bought the era 100 to connect to a vinyl record player and the rest of the system. 

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@AdamRivard - I ended up ordering the $40 Sonos Combo Adapter from Crutchfield because they were the only company who had it in stock and who would ship it quickly to me. I wrote an e-mail to Sonos’ CEO about its lack of adapter availability and planning, from his own link on their website, and I never received a reply. Here is the link where I found his e-mail address (https://www.sonos.com/en-us/contact). I am currently using the Combo adapter to switch between the 3.5 mm output from my PC and the Sonos S2 software controller connected to Spotify. Although the combo adapter functions, I found it to be very cheaply made for something which costs $40, and I mentioned that to Crutchfield.

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Probably 75%, as a guess, will use them as surround speakers, in which the line in is disabled. Sonos is both saving needless expenditure, avoiding needless pollution, and keeping prices as low as possible. 

Fine, then allow it to work with any third party USB C to 3.5mm adapter, rather than force people to spend another $25 on something that isn’t in stock ANYWHERE!

Sonos is too good at making stupid, unforced errors like this lately...   

Fine, then allow it to work with any third party USB C to 3.5mm adapter, rather than force people to spend another $25 on something that isn’t in stock ANYWHERE!

Sonos is too good at making stupid, unforced errors like this lately...   

 

That’s the thing, third party USB-C to 3.5 mm adapters aren’t analog in and digital out, they are basically headphone jacks, i.e. digital in and analog out.  That’s why they don’t work, not because Sonos is preventing them from working, they just do the opposite of what the Sonos dongle does.  

I can confirm that the Apple USB-C to 3.5mm Audio Jack / Headphone Adapter does NOT work for line input with the Era 100. I bought the Sonos line adapter and it works. The line input source is automatically recognised as an audio component source. The Sonos widget is larger than Apple’s and better quality. There must be a chip in it controlling the handshake, doing impedance matching, and/or A/D conversion, otherwise there’s no good reason to make it proprietary. I agree with others that it should be included with the product.

Sonos should make it much clearer on their website that the Era 100 (and perhaps any of their newer USB-C line input devices) requires their line adapter widget! It’s about 2x the cost of the Apple USB-C/3.5mm jack, so I’m not happy. But life is too short to spend any more energy on this.

Don’t get caught out folks.

P.S. Why use line input? Well for me it means I can then use my Dolby Atmos Headphone sound controller on my computer to expand the speaker’s soundscape. Dolby Atmos only works with the PC’s headphone audio output.

Userlevel 7
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I can confirm that the Apple USB-C to 3.5mm Audio Jack / Headphone Adapter does NOT work for line input with the Era 100. I bought the Sonos line adapter and it works. The line input source is automatically recognised as an audio component source. The Sonos widget is larger than Apple’s and better quality. There must be a chip in it controlling the handshake, doing impedance matching, and/or A/D conversion, otherwise there’s no good reason to make it proprietary. I agree with others that it should be included with the product.

Sonos should make it much clearer on their website that the Era 100 (and perhaps any of their newer USB-C line input devices) requires their line adapter widget! It’s about 2x the cost of the Apple USB-C/3.5mm jack, so I’m not happy. But life is too short to spend any more energy on this.

Don’t get caught out folks.

|Did you read the post above yours?  The Sonos adapter is different to the Apple one and converts Analogue in at the 3.5 jack end to Digital out at the USB C end.

It’s clearly marked on the product page:

 

Moreover the FAQ on that page go into all the detail:

 

I can confirm that the Apple USB-C to 3.5mm Audio Jack / Headphone Adapter does NOT work for line input with the Era 100. I bought the Sonos line adapter and it works. The line input source is automatically recognised as an audio component source. The Sonos widget is larger than Apple’s and better quality. There must be a chip in it controlling the handshake, doing impedance matching, and/or A/D conversion, otherwise there’s no good reason to make it proprietary. I agree with others that it should be included with the product.

Sonos should make it much clearer on their website that the Era 100 (and perhaps any of their newer USB-C line input devices) requires their line adapter widget! It’s about 2x the cost of the Apple USB-C/3.5mm jack, so I’m not happy. But life is too short to spend any more energy on this.

Don’t get caught out folks.

|Did you read the post above yours?  The Sonos adapter is different to the Apple one and converts Analogue in at the 3.5 jack end to Digital out at the USB C end.

I read it when solving the issue.

It’s clearly marked on the product page:

 

Moreover the FAQ on that page go into all the detail:

 

Yep makes sense when you buy via Sonos direct, but I bought via John Lewis (in UK) as you get a 5 year warranty. Lesson learned to read the Sonos site details first. I have a dozen Sonos devices and some of them are connected to the connect:amp which didn’t require these shenanigans.

Fine, then allow it to work with any third party USB C to 3.5mm adapter, rather than force people to spend another $25 on something that isn’t in stock ANYWHERE!

Sonos is too good at making stupid, unforced errors like this lately...   

 

That’s the thing, third party USB-C to 3.5 mm adapters aren’t analog in and digital out, they are basically headphone jacks, i.e. digital in and analog out.  That’s why they don’t work, not because Sonos is preventing them from working, they just do the opposite of what the Sonos dongle does.  

 

This is actually incorrect, in the context of Apple’s A2049 USB-C to 3.5mm (not the Lightning!). Read more here: Review: Apple vs Google USB-C Headphone Adapters | Audio Science Review (ASR) Forum

Basically, there is a digital to analog conversion happening in the adapter and if you have the US version, from a budget standpoint, it actually rivals some USB-C DACs with its 1Vrms output. So, there is more going on preventing the Era series from accepting them as an adapter. This is unlike the USB-C ethernet adapters, which every single one I’ve thrown at my Era 100 have been accepted, including a Belkin and Uni one. Maybe simply due to the fact we’re trying to go line-in with a line-out adapter. 🤷‍♂️

Only the Apple’s Lightning to 3.5mm works in the way you described, where the phone does the conversion, and the adapter is basically a dumb 3.5 jack.

Fine, then allow it to work with any third party USB C to 3.5mm adapter, rather than force people to spend another $25 on something that isn’t in stock ANYWHERE!

Sonos is too good at making stupid, unforced errors like this lately...   

 

That’s the thing, third party USB-C to 3.5 mm adapters aren’t analog in and digital out, they are basically headphone jacks, i.e. digital in and analog out.  That’s why they don’t work, not because Sonos is preventing them from working, they just do the opposite of what the Sonos dongle does.  

 

This is actually incorrect, in the context of Apple’s A2049 USB-C to 3.5mm (not the Lightning!). Read more here: Review: Apple vs Google USB-C Headphone Adapters | Audio Science Review (ASR) Forum

Basically, there is a digital to analog conversion happening in the adapter and if you have the US version, from a budget standpoint, it actually rivals some USB-C DACs with its 1Vrms output. So, there is more going on preventing the Era series from accepting them as an adapter. This is unlike the USB-C ethernet adapters, which every single one I’ve thrown at my Era 100 have been accepted, including a Belkin and Uni one. Maybe simply due to the fact we’re trying to go line-in with a line-out adapter. 🤷‍♂️

Only the Apple’s Lightning to 3.5mm works in the way you described, where the phone does the conversion, and the adapter is basically a dumb 3.5 jack.

@jgatie I wish we could edit posts here! I did not carefully read your entire post. My apologies - as you noted, the fact that we are trying to go the other direction could be the issue. Yes, there is more going on within some USB-C to 3.5mm adapters, but the line in aspect could be the issue.