Best Smaller Bookshelf Speakers For Use Exclusively With Ambient Music?

Thanks for the many helpful recommendations. TheQuad recommendation sounds like a great option. There is a pair of Quad 12L's currently for sale. How much do those differ from the 12L2? 

Also, I was all set to buy the Sonners that you linked as I read the review, until I got to the end and saw they were almost $5k!!!

I have located a desirable pair of the Quad L12L2. I do realize that mrteeves is correct about at least decent bass being needed. How are the Quads in that department? Given the understanding that any small, bookshelf speaker is limited in that regard. 

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I have a set of Fritz speakers that have been very satisfying. https://www.fritzspeakers.com/Fritz%20Carbon%206%20Technical%20Specifications.htm

The grills are held on magnetically- classy. I listen to Steve Roach a lot; his music is more along the lines of Eno rather than Enya! Try 'Dreamtime Return' or perhaps 'Early Man'..."

Thanks Ralph. I will certainly consider the Fritz speakers if I can find a pair near my budget. And Dreamtime Return and Steve Roach are longtime favorites of mine too! 

There are a nice pair of Quad S2's also out there. Any idea how they compare with the 12L2? 

Original KEF LS50s.  Beautiful detail and midrange.  Can be found used for under $1k.  Hard to beat!