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

I have Forte I speakers in stock form and they need careful amp/ room matching to not sound bright.
They sound best when I can sit at least 9' away. At around 6' the horns don't seem to develop and sound bright.
A lively room w/ lots of reflections seem to magnify the already lively Klipsch sound.
These speakers seem to like warm and soft sounding amps. Works very well with my current Rega Mira3 amp and a vintage NAD 7225 receiver. I'll bet Marantz amps would be a great match as well as vintage McIntosh. I was surprised that they sound bright w/ my Mystere IA-11 tube amp because of the superb air and spaciousness that it supplies. I think this amp would be a perfect match in a larger well dampened room where you could move the speakers into the room.
Finally toe in plays a big part and these speakers wonderfully large soundstage allows for great sound with no toe in.

I disagree Corelli. It's about the synergy between equipment and balancing your system to your room acoustics. 

I read many folks recommending tube amps w/ the OPs Fortes. I've used a modern tube amp w/ my Forte I speakers and it's not a magic bullet for Klipsch Heritage loudspeakers. It can still sound bright because of the extra air and spaciousness from my tube amp which multiplies an already lively speaker. I find room placement and a less lively large room than I have plays a very important part. The tube amp is beautiful w/ Klipsch but won't necessarily tame the highs if there is other factors. I also find the my Linn K20 low capacitance speaker cable is a perfect match w/ my Klipsch.