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Contributor I
October 2, 2019
Answered

Connect:Amp Direct Line Input Delay to Wired Speakers

  • October 2, 2019
  • 23 replies
  • 1261 views
Hello Sonos,
For the past few years I've used the line input on a Connect:Amp to power a left and right wired speaker with no issues. Recently, I started to notice a clear and obvious major delay from the line input source to the wired speakers. I do not have any other Sonos speakers connected wirelessly.

I originally thought this was from my computer or a USB preamp I have for conference calls, but if I test the actual wired input (1/8" male jack from my computer headphone out to RCA left/right male in to the Connect:Amp) simply by touching the input to hear a buzz...there is now a 5 second delay to the wired speakers. This was not the case for 5+ years and just started happening about 3 weeks ago.

I should note that streaming music from Apple Music or Spotify has no delay...I can press start and stop and the music stops immediately and pairs with other Sonos Play:1 and 3's I have. Only when I use the line input directly to the wired speakers is there an issue.

Is there a new firmware patch that could have caused this issue?

I recently purchased a brand new Connect:Amp to see if it was a hardware problem with the one I have that is 5 years old...same exact issue right out of the box.

Thank you so much for any suggestions you have.
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Best answer by ratty
Change the Line-In compression setting to Uncompressed. It sounds like it's on Automatic and, for some reason, has decided to apply compression.

Settings -> System -> Audio Compression

23 replies

Airgetlam
January 24, 2020

Please report back. I know for sure in the past my devices have been on multiple ‘revs’ of the firmware. Just not sure about this pass, as I don’t have a CONNECT in my system to confirm. 

Bruce
Lyricist III
January 28, 2020

I flipped every setting and it’s still lagging 2-3 seconds. This iOS update didn’t fix it as expressed earlier. Going to update my existing ticket (new diag 1330262007). Would love to be able to just use an older version at this point...

Lyricist III
February 2, 2020

Haven’t heard back from support in five days since I sent the diagnostics. Pinging then again...