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
Post removed 
+1 for KEF LS50 Wireless. I've had mine for about a month now and thoroughly enjoying them. They are definitely better than my $4000 B&W CM10 floor standers that I sold recently. I am very impressed with the built-in amps. I don't have any issues with the built-in DAC but the OP can add a separate DAC in the future.

Best Buy Magnolia (Design Center) carries them, so the OP can always buy them from the store and return them if they do not meet expectations. If a design center is not nearby, the OP can have them shipped and possibly do a direct store return (instead of paying for shipping), provided Best Buy allows it.
I forgot to mention that Best Buy gave me a 12% discount on KEF LS50 speakers and performance stands. I don't think you will get that on Amazon though.
Since Amazon is apparently willing to cover return shipping of large speakers, you might as well begin some in-home auditions. It's essentially risk free as long as you're careful with handling. I like the LS50s, but they're more competitive in the $2k to $3k range. In your room, you'd want to pair them with a sub or two. 

The R900s should negate the need for a sub but give you most, if not all of the midrange goodness the LS50s have to offer. 

Keep a journal with listening and placement notes for each pair you audition.

Can you order from the magnolia store which is part of best buy?   If so get an ma5300 integrated for about 4500.  and a pair of harbeth 7es3 from elsewhere.  Trust me it will a sweet system!