I’ve never understood the appeal of Stand mounted shoebox sized speakers. The footprint is the same whether it’s a floor stander or a stand mount bookshelf, so what’s the advantage?
Some years ago, when JBL’s Madison Avenue showroom in New York City was being closed , ex dem stock was being cleared at very good prices, I was able to compare - in a very well treated listing room - the 106 and the 208. No contest. I don’t see the case for a 105/106/126 with or without subwoofer if you can afford to accommodate a 208 or 228.
Also properly integrating a sub with small speakers is not a trivial matter.
FYI, I needed up getting salon 2s, but could easily have lived with 328s or even 208s