Help with high end bookshelf speakers

Borresen M1 should do nicely

@renosteve

What’s your budget? What speakers do you currently have?

The PS Audio FR-5’s are fairly inexpensive and the Borreson M1’s are not. Help us give better advice.

If you want to try an excellent sounding bookshelf speaker that can be had used for under $500 a pair, I would recommend the KEF Reference Series 101. It's very well made and similar in design to an early Rogers LS3/5A. It even uses the same drivers but with a different crossover. If you don’t like them you could probably sell them for what you paid.

@wsrrsw     Johnnie Taylor

You Mentioned reflections. I like the idea of the Revel M126 with matching stands. They are really good with reflection due to the tweeter 5th gen wave guide, they have some very nice finishes, and they sound good with the Hegel series. 
Another option is the KEF R3 or R3 meta with a Nordost Heimdall speaker cable. It good for reflection, great for off axis, and it comes in nice finishes. 
last would be the Dali Minuet SE. it can be mounted on the wall, put on a shelf, or on a stand because it was designed to be within 8” off the wall do to the 45 degree angle port design. It only comes in burned walnut. It basically a Dali Micro KORE. I would use a speaker cable without silver. I would even try the $40 Micca speaker cables on Amazon. Yes I own/ use them on my second system. 
I know these are common brands but I have actually had experience with these combos. I hope his helped out today.