Really? Four?

Sounds like you need instead a professional/cinema grade speaker system.

Seems excessive to me, but I don’t have any real issues of it as a request. As a Product Manager, however, I might take exception to how much effort and time it would take to implement versus the market/number of users for it. On the other hand, why stop at four? Why not thirty one?

Nakamichi Dragon soundbar home theater system has 4 subs. It would be dope if sonos can allow for their home theater setups to include up to 4 subs. I know my room would definitely benefit from that.

I rather think you’re in the minority in needing 4 Subs. But there we are then: that one has it, so we must have it.
 

AIUI, the Dragon system has no voice control option and no wifi capabilities. Should Sonos drop support for that in favour of supporting more Subs