My preference is always for highly musical, timbre-ly correct and non-fatiguing. Any ideas?In this case you want a Green Mountain Audio speaker. These speakers are 1st-order x-over & are time-coherent. Thus, they will always be highly musical, timbrely correct & non-fatiguing. EXACTLY what you are looking for.
You can buy their entry-level Rio factory-direct from their website: http://www.greenmountainsaudio.com
A pair costs $2500 & you might also find one used here on Audiogon or Craigslist.
really very good speakers.....
(no affliation with the company. just a satisfied ex-owner. Using planar speakers now).