Small bookshelfs that reach 42 hz

I just about worked out what speakers to buy for the living room when the wife changed her mind from floor standers to stand mount speakers. She saw a set of B&W 805's on their dedicated stands and that was it.

Not wanting to cave in for pure aesthetics, I need to know what else to consider for a small (16" or less tall) bookshelf speaker that will allow me to reach the bottom range of a bass guitar with solidity. Please no speakers that do 50 or 60 hz and then crap out; that won't fit the bill. Price is anything up to $3000 new with stands. Nice looking matching stands are a major plus as this is the living room.

Since I haven't bought the amp yet don't worry about synergy but if you have suitable integrated recommendations that won't be above $1500 or so used I'm all ears. Many thanks.
What about Sonus Faber Cremona Auditor? I have auditioned them against a pair of 805 and there was no competition really. You will have to wait a bit to find them used.
Since I am assuming you are going to stand mount them, why not go with a spendor s5e. The profile it presents is no diferent than a bookshelf on stands and you get much better bass extension
I round it to be gorgeous tonally but it didn't boogie enough. The 6e floated my boat but the wife vetoed them. The smallest footprint floor stander that is really small that I've liked is the Totem Hawk. It's only 6.75" x 9.5."