Rtings.com finally did a full review of the Bose Soundbar 700 with surround speakers and bass module: https://www.rtings.com/soundbar/reviews/bose/ soundbar-700-with-speakers-bass-module : r/bose
Expert review Bose 700 Soundbar + Bose Bass Module - Coolblue - anything for a smile
Bose Soundbar 700 Arctique Bass Module 500 Black - Sound bar - LDLC 3-year warranty | Holy Moley