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
@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...

That ELAC is an old model.

They recently introduced the ADANTE, at right around 5K, which has been getting very good reports from the electronics shows.  But it's not on Amazon...