If you comprehended my previous reply at all, then you'd be inclined to realize the 700 (or 800) series may
not be the most optimal choice. Quality wireless is
not about blasting as much signal all over the place from as few radio cells as possible; it's about blanketing the desired area with the required minimum RSSI at any given location, using as many radio locations as are necessary for the hardware in question. So a Ruckus 700/800 may out-amplify a WAP581, maybe even by as much as 25-30%, but given your minimum bandwidth goals at any given location, that still may not be enough. You need to approach the problem differently, because most all of these similar class APs are lower-power/amplification
by design.
Instead of placing a single R710 (or WAP581 for that matter) in the middle of a floor and, acting like a consumer, getting all pissed off when the 5Ghz doesn't deliver the requisite bandwidth at distances that it really was never designed to, you instead want to act like a wifi engineer, spec'ing multiple equidistant Cat6 ceiling runs inside that same broadcast area and putting in, for example, two or even three R510's (or WAP581's at slightly lower power), to work together to blanket that same area with
lower power, lower noise 5Ghz, which will be
more returnable by the comparatively weak radios in your client devices (giving you higher actual throughput from all locations).
That is how you increase usable fronthaul over distance the proper way.
At the end of the day, if you're looking for a business-class wifi AP -- from
any brand -- that's going to knock your socks off with amplification on the level of a consumer all-in-one device, you're barking up the wrong tree my man. For more of an education in the way wifi works, please see the following
Duckware article, specifically section 16,
A Reality Check.