Best speakers for Canary Audio CA-301CA


I have a pair of B&W 683 (90db sens) being run by Canary Audio CA-301 AE (24 watt 300B push pull) with Canary C630 preamp.  I love the warm tube sound and timbre midrange, but considering a better matched speaker for this set up.  Any suggestions? 

wadec76
Room size, musical tastes? 
21x22x12.....like acoustic singer song writer....though prefer all types.  

21x22x12.....like acoustic singer song writer....though prefer all types.