$700 Sonos 5.1 home theater system with ANY powered sub, Beam or Playbar + Ikea Symfonisk surrounds

I tested multiple ways to add a powered sub to my Sonos home theater using my Symfonisk hack and found a super cheap and easy way to build a full 5.1 system for under $700 - that’s the same price as the Sonos sub alone!

Recommended subwoofers on Amazon ~$100:
Polk 10" -
Monoprice 8" -
Monoprice premium 8" -
Acoustic Audio 8" -

Note: any subwoofer brand or size will work as long as it's amplified and has speaker level inputs - if it only has RCA inputs, look elsewhere.

Beam -
Playbar -
Ikea Symfonisk -

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