Klipsch Forte ii too bright, or is it my room ?


Help? Certain music makes my ears hurt from my bright sounding Klipsh Forte ii's (Sonny Rollins Saxophone Colossus), Or is it my room full of glass and tile? Or am I listening too loud (80 db), or my 1970's Pioneer receiver? I just ordered some dynamat to put on the rear of the horns. Some music is good though. I have often though about getting another pair of speakers so I can switch back and forth or run all four depending on the music. Any advise?
peterjc
Individuals may have different capacity for what they perceive as brightness. For sure OP running wrong amp in wrong room, tube amp and some room treatments a good start if keeping Klipsch.
I have 1989 Klipschorns, had to redo the whole thing, but then I'm extremely sensitive to timbre anomalies.
Really good thoughts, all of them.  Refreshing not to hear any “mid-Fi” comments as well.  Certainly with any system it’s a challenge to select the right speakers with the proper amplification.  You didn’t mention which pioneer you had.  Some late sixties early seventies Pioneers were very good sounding. I have always admired horn loaded speakers, but have never owned a pair.  I’ve always noticed them being demonstrated with strings, piano trio, or solo instruments in which they almost always excel for their life like qualities.  They do sound ‘live’, ‘dynamic’ and have incredible impact.  But when I feel like listening to Presence by Led Zeppelin, their appeal goes away and the headaches begin.
That’s why I have always used EPI, AR, Definitive Technologies, B&W, and recently Focal.  You can insert almost any sealed enclosure speaker with a soft dome tweeter here.  They are listenable over a broad range of music without much effort.

A carpet would certainly help. If you love the speaker and your electronics  you can make it work with your system.  Don’t give up! Fire up that graphic equalizer and tame the harshness, or dial back the highs with your tone controls. 
You don’t have to go tubes.  I recently heard the latest Hersey being driven by an ancient Sansui 4000 receiver, playing some Miles Davis and female vocal Lps. Wow!  I’m still thinking about how good the Klipschs sounded.  They were sweet, powerful, laidback, dynamic and really life like.  Makes me want a pair...for now anyway. 
Best!
Norman 

Get an old fisher 500c, sansui 1000a or a dynaco st 70 and those klipsch will sound good. Any ss will scream till your ears bleed. Only tubes with fortes. 
Tubes are the way to go.

I pulled the horns out of my Cornwalls and wrapped them in twine after spraying them with some kind of damping spray. Prior to doing this they rang like bells. After, sounded waaaaaay better.
Wow thanks everyone!! Out of 20 comments it looks like the large amount of glass needs curtains, that is inexpensive & easy, I'll do that & the dynamat first, if It's still too bright a tube amp / new pair of speakers will be in the distant future as I have other expensive hobbies like having a mortgage in California, thanks again everyone!

It is not solely the glass, and unlikely to the be the amp.
I would go to a pawn shop, and try any speaker that they have, or borrow a friend’s…
Then report back with findings.