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erbem8c0
Contributor I
Mar 7, 2018 6:48 PM UTC

Sonos Connect Amp and Speaker Volume

I just got a connect amp and wired it up with a pair of outdoor Polk Atrium 4 speakers. After I got everything installed I went to play some tunes... I had to have to volume to about 50% on the slide bar on the app before I really heard any music out of the speakers, and even then it wasn’t very loud and I was standing right next to the speakers. If I had the volume up to 80% or higher it got closer to a normal listening level, but didn’t leave much room for advancement. I typically listen to my play 1 or sound bar between 30-50% unless we are having a party.

I’ve read other reviews where the Sonos amp and a pair of outdoor speakers is blowing their neighbors away, I don’t feel like mine are getting that loud. Do I need better speakers or is it the amp?? I bought the amp open box excellent condition from Best Buy, I just want to make sure something isn’t wrong with it before my 15 day return window is up.

Any feedback would be appreciated!
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    39 replies

    Stanley_4
    Stanley_4
    Grand Maestro
    Mar 7, 2018 7:12 PM UTC
    The Polk speakers specs look like they should be a good fit: sensitivity 89 dB, 8-ohm impedance, handles up to 80 watts.

    How long are your speaker wires and what size are they?

    Have you tried different music sources to see if the volume levels are different.
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    erbem8c0Author
    Contributor I
    Mar 7, 2018 7:18 PM UTC
    25-30ft wire, I got 14 gauge CL2 Incase I needed to make a longer run to further in the backyard.
    I was using Pandora through the Sonos app, I didn’t try other sources... could that play a roll? Mostly just use Pandora, occasionally amazon music or tv sound from sound bar.
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    richardjg
    Contributor I
    May 6, 2018 5:09 AM UTC
    I have the same set up - Connect:Amp and Polk Bookshelf speakers but running analogue from a DAC into the Connect:Amp. I had the same low volume problem. The fix is to go into the room settings for the Connect:Amp and change the Line-in sensitivity. (https://sonos.custhelp.com/app/answers/detail/a_id/1091/~/using-line-in-on-sonos#settings) Mine was set on Level 2 - probably the factory setting, so I simply reset to Level 10.
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    impacted8s
    Contributor I
    May 19, 2018 11:58 PM UTC
    Hi, I'm having similar issues with my connect amps and volume control. How do you adjust the Line-in sensitivity? the link provided by Richardjg does not work.
    Thanks
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    Airgetlam
    Airgetlam
    May 20, 2018 12:59 AM UTC
    They've just changed where all the articles live, which apparently has invalidated all of the older links, so try this one:

    https://support.sonos.com/s/article/1080
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    Bruce
    richardjg
    Contributor I
    May 20, 2018 4:13 AM UTC
    To adjust Line-In sensitivity, go to room settings, open the room you want to adjust, press on Line-In, press on Line-In Source Level. I set mine to 10 - highest.
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    ericaeide
    ericaeide
    Lyricist III
    Jul 17, 2018 5:21 AM UTC
    Connect AMP wired to sonance outdoor speakers... when I go to settings there is no Line in setting
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    Jeff S
    Jeff S
    Retired Sonos Staff
    Jul 17, 2018 3:57 PM UTC
    Connect AMP wired to sonance outdoor speakers... when I go to settings there is no Line in setting

    Hi there,

    The option doesn't show up if the CONNECT:AMP doesn't detect a line-in connection. Please double-check the line-in cable to make sure it's fully inserted on both the CONNECT:AMP and the source device. Also, make sure the source is playing audio when you're looking in the app for the line-in setting.

    If that doesn't work, please leave the source playing and submit a diagnostic report form the Sonos app. Reply with the confirmation number and I'll check it out for you.
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      ericaeide
      ericaeide
      Lyricist III
      Jul 17, 2018 4:36 PM UTC
      Thanks Jeff. My kit didn't come with anything to connect to the line in. I just bought speaker wire and connected the speakers to the Connect AMP.
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      ericaeide
      ericaeide
      Lyricist III
      Jul 17, 2018 4:38 PM UTC
      This is the kit: https://www.bestbuy.com/site/sonos-sonance-outdoor-speaker-streaming-audio-bundle-with-xpress-audio-keypad-white-gray/6196623.p?skuId=6196623
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