https://arstechnica.com/gadgets/2022/08/want-a-cheaper-sonos-subwoofer-youll-have-to-wait-even-longer/

The launch of the Sub Mini—an anticipated addition to Sonos' connected audio lineup—appears to have been delayed, the company revealed after its quarterly earnings report this week.

The device was expected just about any day now. But Sonos confirmed to The Verge on Wednesday that it has "decided to push an anticipated product launch from Q4 ’22 into Q1 ’23," and it's all but certain that said product is the Sub Mini. That places its launch in a window between October and December of the calendar year 2022.