Best Smaller Bookshelf Speakers For Use Exclusively With Ambient Music?

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!

To answer the previously asked question, the amplification will be provided courtesy of a near mint, 1970's Optonica SM-4646 that is currently being serviced and refurbished completely. This was their top of the line at the time and received multiple very prestigious rewards.