Which speakers did you find bright, fatiguing or just disappointing in some way?

I tend to find speakers with metal tweeters bright-Monitor Audio, Focal, Mordaunt Short...very fatiguing to listen too especially when connected to Yamaha or Krell for example. I prefer a warm or neutral speaker and amp combo...

Human ears are DESIGNED to identify immediately the human voice TIMBRE in all acoustical settings..

Designed huh? Ooookay.  Human speech is relatively new in our evolution but obviously important but just one aspect of survival of the species as it relates to hearing. W.r.t.. "tone" and emotion most mammals can detect that independent of other information context. It's not uniquely human.

People argue because too many take perceived personal experience as fact. Then they argue that made up fact.

I don't hear so much fatiguing speakers though they definitely exist, as much as fatiguing rooms incompatible with audio in general or with a specific speaker, hence why many view some high end speakers as bright.

ATC SCM40 original version before upgraded tweeter.  ANYTHING by Klipsch (make your ears burn); Monitor Audio Silver Series; KEF LS50s; Speakers with aluminum tweeters versus silk dome (Morel high end tweeters are fantastic in solving this issue).  Cerwin Vega as a general rule..

B&Ws....yuck!!