The GR Research high sensitivity speakers are, in a word, stunning. I had a pair of the old Super V's. Then a pair of Wedgies on top of 2x12 open baffle servo subs (flat to 20Hz at brutal levels). I'm getting ready to build a pair of NX-Tremes. Once one goes to really good open baffle speakers it is very, VERY hard to consider anything else. Watch these:
https://www.youtube.com/watch?v=pYP-XErZHu4
https://www.youtube.com/watch?v=8xxFKVC2Xro
https://www.youtube.com/watch?v=XgoR2PLEZsk
https://www.youtube.com/watch?v=pYP-XErZHu4
https://www.youtube.com/watch?v=8xxFKVC2Xro
https://www.youtube.com/watch?v=XgoR2PLEZsk