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

Martin Logan ESL-X on demo they hooted, squawked and buzzed at me getting very lost on complex pieces.

I feel the same way about B&W speakers as @millercarbon feels about Wilson.That is, over rated, over priced & under perform.
I also had an aquaintance who had an outstanding Wilson set up .... at least on paper.
$25G dollar Wilsons, Bryston 4B-SST amp, Sim Moon deck, & Nordost wire.
To save space lets just say after blowing all that doe his system sounded .... dry.
Price maybe an indicator where to start, but it's not the "be all", "end all" in the final analysis.
As for using YouTube as a listening reference for any piece of Hi-Fi ..... that's just blayton ignorence. Get down to a dealer and listen - PERIOD.

I am amazed at how many people actually bought and paid for so many speakers they didn’t like, some posters had that experience with several. My first thought was they didn’t do their homework or didn’t do a proper job of auditioning or both. The expectation that a speaker will perform in one’s own room (with his own electronics) in the same way as in a dealer’s showroom is recipe for disappointment. I honestly think one can make almost any speaker (that one liked the basic signature of) work well in his room with proper set up, system matching and acoustic treatments. If I was disappointed in the performance of several reputable speakers in my room, I might well blame the room instead of the speakers.

 I honestly think one can make almost any speaker work well in his room with proper set up, system matching and acoustic treatments. If I was disappointed in the performance of several reputable speakers in my room, I might well blame the room instead of the speakers.

I am glad to be not the only one with this opinion....

My best to you.... 

Sad to see Roy Johnson trashed on this thread as I had and loved both pairs of speaker from him, the models of which I now forget.  A couple of our fellow posters all muck up each and every thread on this forum.  Of the 20 or so speakers I have had over the past 45 years, I enjoyed them all very much.  Except the KEF LS50's, which were awful sounding in the month I had them and were hard to drive with my Plinius 175 wpc SS amp.  Go figure.  Honestly, if I hit the Lotto and moved to a home with a large living room, I'd have a pair of KEF Blades in a heartbeat.  
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A compendium of my speakers:  

List of my speakers from 1973 to 2021:

Rectilinear III Highboys (outstanding speakers!)

AR bookshelves

JBL L100 (like the cause of my hearing loss these days)

Electro-Voice Sentry 100's

Spica TC 40's and TC 50's (unparalleled imaging, but the drivers were easily overdriven to failure)

JSE Infinite Slope 3's (early Jeff Joseph's creations)

Goetz MS3 Towers (I had them for 20 years, made by a boutique designer in Atlanta)

KEF LS50 (My least-liked speakers among the bunch, shrill sonically and hard to drive)

Von Schweikert V22

Usher BE-718

Totem Hawks (huge LF response)

SVS Black Towers 

Klipsch Cornwalls (modded to Cornscala's)

Tyler Acoustic's Linbrooks (fantastic speakers, but they completely overloaded my smallish room)

Joseph Audio RM25XL ( should have never sold these)

Dynaco A10, A 25, A35  (when recapped, a pure vintage sound with a great midrange)

KLH Model 5, 6, 21 and 28? (the Model 5 speakers are truly legendary when recapped)

Blumenstein Orca's

Green Mountain Audio Rio and Eos HX

GR Research LGK

ELAC Debut B6 

Dali Zensor 1 and 3's (both outstanding monitors)

Linkwitz Lxmini's  (if you have never heard them, you ought to.  However with the need of a 4-channel amp, they rendered my cadre of 2-channel amps unusable)

Spatial Audio M4 Triode Masters (tremendous speakers, not at all fussy about placement)

Revel M22 

Gallo Strada’s (wonderful little orbs of musicality in my bedroom system)

Buchardt S400 ( unbelievably revealing monitors)