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Sue Denim
Contributor II
March 12, 2020
Answered

Port Line-Out very low volume.

  • March 12, 2020
  • 12 replies
  • 5690 views

I have a Port connected to an Audiolab 6000A amp in a rack in my garage, connected to speakers in the house.

 

The amp always starts at a default volume level of 0db. At this level, the Port’s output is very low and I either have run the Sonos App at near full volume or go out to the garage and turn the amp up manually every-time it’s turned on.  I’ve set up the 12v trigger so I can turn it on via Sonos in the house and don’t think I should have to trudge out to the garage to manually turn the volume up every time…

Am I missing a trick?

What’s the difference between Variable and Pass-Though output on the Port? I thought Pass Through was more for AV set ups (mine is just for music) but would this work better? Would the Amp be compatible?

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    Best answer by Ken_Griffiths

    Sue Denim,

    Have you perhaps tried setting the Port’s line-in Source Level to 8, 9 or level 10 in the App “Settings/System/[Port Room Name]” and set the Line-Out to ‘Fixed’ which is equivalent to full volume and then controlling the volume using the audiolab Amp?

    If you prefer to control the volume with the Sonos App, then set a desired volume level on your amp and change the Line-Out on the Port to ‘Variable’.

    12 replies

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    Paul A
    Paul A
    Retired Sonos Staff
    August 7, 2020

    Hi @marcsanrafael,

    Welcome to the Sonos community and thanks for reaching out to us.

    I would like to ask if we can try the following recommendation.

    • Play music on your Sonos Amp through any available music services on the Sonos app then submit a diagnostic for us to check what is going on.
    • Turn on the TV and switch from music to TV audio on the Sonos app and then submit a diagnostic again so we can check as web and do comparisons on how the Sonos Amp behave on both situations.
    • Please take note of the confirmation number corresponding to each situation.

    Please let me know how it goes. We are always here to help.

    Thanks,

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    WillyMaysHaze
    Contributor I
    January 2, 2021

    I know it has been awhile on this one however I just bought a Port and I found the same issue existed with having to turn the Port volume up a lot to be able to listen to music.

    I am curious on knowing what the specifications are of the Port in the way of output sensitivity.

    I found that if I turn the Port to 50% and then turn the gain controls on my power amp up until the music sounds loud it works very well.  I have the Port set on variable as I need to adjust the volume with the Port as my power amp does not have a volume control.

    If you have a receiver or preamp that has a volume control you can also set the Port at fixed which puts the Port into maximum volume (as mentioned earlier) and then just use your receiver or pre-amp for volume control.  

    Again - Sonos Tech person or anyone else know what the output sensitivity is of the Port?

    Side Note:  I found that the Port has a burn in period of at least a couple of hours before it actually starts to sound “good”.  Before that burn in time the Port sounds very disappointing.

     

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