Looking for speaker recommendations that I can purchase on Amazon.com


Budget: under US$5000 and would prefer a price point of less than $3000/pair. The most expensive speakers I have owned so far are Polk RTi A7's, so this will be a big jump for me.

Purpose: music

Room: I tend to move every few years, so I don't want speakers that will work best only with very specific room conditions. Currently, I will be using these in a medium size room of about 22 feet x 18 feet. The room has carpet and window treatments.

Music sources: CD's, lossless music files stored on computer and MP3's when that's all I have available. I don't ahve any SACD's yet, but I plan on purchasing more high quality music once I have this system set up.

Music styles: acoustic, Indian classical (sitar, srangi, flute), alternative rock (Portugal. The Man, Sleeping with Sirens, etc.), older rock (e.g., Rush).

The speakers should sound good playing the Tanpura (aka Tambura). It is a classical Indian accompaniment instrument in the "drone" category. (https://en.wikipedia.org/wiki/Tanpura) Example of sound here:
https://www.youtube.com/watch?v=F7tlqXix_eo
With bad equipment that sound is fatiguing to me. Live it is beautiful and relaxing. Hopefully I can find speakers that will do it justice.

Personal Preferences: I am looking for non-fatiguing, warm, musical qualities. In another discussion topic here on this forum, @mtrot and I agreed about "smooth, sweet, soft, silky treble" and "shimmery, airy cymbals" as goals.

Amplifier: Yamaha P5000S

DAC: to be determined, but probably something like the Teac NT-503

Finally, the speakers of choice must be sold on Amazon.com, Bestbuy.com (or possibly some other similar retail website). I have personal reasons for this limitation. It isn't always true that I will need to buy all my speakers or audio gear from one of these sites, but for the moment, it is a requirement. Please don't recommend anything that isn't available on one of these sites. Thanks.

lowoverdrive
KEF Q950...I've heard them and they are very realistic with non-fatiguing highs and a huge soundstage...
https://www.amazon.com/KEF-Q950-Floorstanding-Speaker-Black/dp/B071P6KRVS/ref=sr_1_1?ie=UTF8&qid...

KEF are neutral sounding, so don't know if the pro amp would be a good match.

Also the KEF R500 and R700; higher-end models.

@lowrider57 thanks for the recommendations. I added all thee to my list:

KEF R700
KEF R500
KEF Q950

@yogiboy I will also add Elac to my list. For example, this one seems like a good speaker (but I'd have to increase the budget significantly).

ELAC FS509VX Floor Standing Home Speaker (Walnut)

I've heard many Elacs tend to be bright, and that is something I am trying to avoid. But the FS509VX doesn't have that issue according to one review I just read.
When you buy a speaker on line without an audition it’s a crapshoot. You just keep your fingers crossed and hope you like them!
if you have the LS50 on your list you could add the LS50 W on there. By most accounts they are much better. Also you could ditch the pro amp. May sound ok, my bet is harsh and bright. 
+1 yogiboy and my guess is no one here has heard any of these speakers with your amp.  Not a common amp choice for these speakers.  But it might sound great...