Best speakers for 15X14 ft room

Your question, versus the information supplied is not aligned.
A 14'X15' room is 'tricky' acoustically speaking.
The speaker, while essentel is important is a 'part of the elextronic puzzle' of this kind of question.
To paraphrase many engineers, "Square ain't good"."
Pressures from nearfield cancel others creating a very non linear response. So whatever happens in this room is really more at the result of the accoustic space of the room rather than, 'at the feet' of the equipment.
Having said this, know that with judicious placement of speakers and listeners that many things can become 'magic', if we're prepared for it.ratios of 1X 1.6 X2.5, for example make life easier with regard to reflected sound. But, know this, with work all rooms can be adjusted for 'perfection'.
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Larry, your friend in audio.

Larry

A ton of absorption and a pair of Revel Gem2's and a JL F112

Merlins are perfect for those dimensions,good luck,Bob

I'm curious as to this turns out too.

I'm guessing you've already put the Dahli's in place and didn't like the results?

waht didn't you like?

Tried both walls or are you relagated to only using one? Which?

My vote is for monitors, or mid sized speakers.

Prior to making the switch though, I'd introduce some room treatments to suck up some of that bass , and some diffusers to eliminate some reflections.

Getting new/different speakers is always such a hassle when your rig is already very good or better. usually it takes still more changes than a simple swap out of loudspeakers.

A room that size pretty much sucks without a lot of acoustic attention. My room is 15x14 with a vaulted ceiling and an open plant-shelf wall to a kitchen/dining area. A room this size has peaks at 40, 80, 160hz. I have six ASC tube traps, 1 GIK super trap, 4 GIK bass traps, 3 242 panels, 4 diffusor panels, and now the balance is very respectable post treatment. The speakers in use are sealed box 27" out from the frt wall.

I don't know of many speakers that function within 1 ft of the wall. Guru speakers are made for that application. Otherwise I would think a small standmount that does not extend much below 90hz combined with a sub or pair of subs. This will allow some flexibility in obtaining quality bass.

When I last had the N802's setup, they were 39" from the frt wall masured to the frt of the tweeter and the balance was pretty good, maybe a bit heavy around 40hz and a suckout at 60hz but very listenable. Good luck in your endeavor.