Using Arc with 3rd party sub and surrounds powered by Amp

Question

Has anybody had success using an Arc for TV sound along with a third party Sub and surrounds powered by Amp?  I am having a challenging time integrating the two systems to play at the same time, Sonos app seemingly makes me choose one system or the other to play when watching tv and getting sound from TV’s hdmi Arc —> Sonos Arc.

Airgetlam · Accepted Answer

When the Amp is used to power surrounds, the Sub output is turned off.

Unfortunately, unless you use the Sonos Amp as the ‘front’ driver of your Home Theater system, there is no way to use a third party subwoofer.

Ken_Griffiths · Answer

Thank you Airgetlam for your response. Do you know, is it appropriate then to have the Sonos Amp connected to my TV via its hdmi arc output? Would this slave the Sonos Arc to the Amp to utilize it as a front channel speaker?

No it doesn’t - the Amp can only be used as secondary device for HT surrounds, or it can be used as a primary HT device with another Amp, or some Sonos speakers, as it’s rear surrounds. You cannot setup the Arc in the way you’re hoping for here. The answer is to perhaps consider getting a Sonos Sub (recommended), or maybe a Sub Mini.

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