$1500 to spend...

I am somewhat biased for stand mounts over floor standers for use in small rooms. Though they lack the bottom octave many provide a very taunt and accurate bass over those frequencies they serve. Many can soundstage and image beyond the speakers. The smaller room  help to support lower base. That said, Jl35 is correct in that there are several smaller floor standers that are available that may augment bass over a stand mount and serve you well. Either way I would shop for a used pair. Possibility look into use of a subwoofer as funds become available.

I believe if one wants to get into the bottom octave with speakers one sacrifices too much from the others. The lower the price point the more true my belief is. Quality bass costs. I am not willing to make that sacrifice. Very little of the music I play contains much in that region anyway (rock, Jazz, pop, bluegrass, folk). 

@jjss49 hey mate. No offense taken. And I appreciate your more thoughtful second response. But I’ll say, as with your first response, it is not very helpful: you don’t offer opinions on my actual queries, you don’t offer any alternatives, and you even imply that what I really should do is almost double my budget. Again - not productive to the conversation. Hope you take this as constructive criticism of your posts. I’m sure you’re a nice guy or gal. Be well!

@mesch thanks for that thorough explanation and your theory makes a lot of sense!  I listen to a lot of indie pop, electro, rnb, and lots of Prince, so I definitely need those lower octaves. 

@leemaze

you even imply that what I really should do is almost double my budget.

your opening post -- ’$1500 burning a hole in my pocket’ - and you state have wharfedale diamond 10.7s -- which are $1399 mrsp, worth $700-900 used if they are in good shape

so available budget is $2200-2300 to upgrade the system as your stated goal - how does that double your budget, mate?