matching speaker to room size?


I have a 14 x 16 room with 9 ft ceilings and looking for new speakers. Presenlty using large old Ohm C2 bookshelfs. Listen to broad range from modern and classic jazz (piano, guitar, horns and vocals) to electric blues, tons of female singers, Hawaiian acoustic and fingerstyle guitar, classic rock and even some classical and newgrass like Nickel Creek and Alison Krauss. The one dealer in town suggeted stand mount monitors like Totem One, JM Focal 1007S and similar. I have been more interested in floorstanders like Gallo 3.1, Dali Mentor 6 or Helicon 4. He is saying this will give me too much bass? Is there a way to compute good match from room dimensions? I listen at low to high levels depending on time...Saturday mid-day vs. 11 at night. I have heard all these speakers, not necessarily side by side, trying to make a call but not sure which type to go with so I cant even proceed to which individual speaker to purchase. BTW, I dont have the optoin of bringing any of these home...most were heard on the US Mainland not in Hawaii.
joekapahulu
A transmission line speaker, for a full range speaker, will likely perform better in a small room than a ported design. Take a look at Salk Sound's SongTower.
I have similar size room (width & height), only much longer. Even so, monitors does it for me. Have tried some full-range floor standers, but given my room size, found most times 'less is more' to be the case. They don't disappear as well and when played loud, bass tends to dominate hence overload room--headache inducing. Given more time and effort playing with acoustic/treatments they might just work. But for me, I'd rather be spending those hours tuning--enjoying more music instead. Thus imo, in your room (small & squarish) high quality monitors such as Totem The One will be better suited. Or, If you can swing your budget maybe the Micro Utopia Be. Anyhow, remember to go quality over quantity. Gdlck!
my opinion only... this whole question of picking a certain size or design of speaker based on room size is silly. unless you are in a booth or a cathedral all sorts of diff types, sizes may float your boat. nearly all spkrs should be a couple ft off the back wall at least but from there you are on your own. room treatment is gonna determine sound more than spkr size so get that part taken care of first or simulataneous with whatever spkr you end up with. 'too much bass' is a bunch of crap from a salesman. a flat response is always good and fix the room acoustics to correct reflections etc.