Bridged amps

gfry OP

Wow, they look very much like the Forte I used to have, to me the only real musical Klipsch made.
Your Quartets you have from what I saw on the net are 97.5 dB efficiency. I think a great sounding good priced amp for those, if you don’t want to cause ear bleed is a $799 Class-A linear Schiit Aegir power amp, and you can trial them for 14 days.
https://www.schiit.com/products/aegir

Cheers George

Just get a better "stereo amp" with the wattage you need without having to compromise it by bridging it.
And if you can't afford that kind of amp for your speakers that may need it, get rid of the speakers.

Cheers George

Sorry first word in the above post, should be NO!!! not yes

gfry Is there any advantage to using two bridged power amps

Yes here are the reasons.
https://forum.audiogon.com/posts/1926175

If you have two amp the same your far better off vertically bi-amping
https://www.av2day.com/wp-content/uploads/2014/05/biamp2.jpg

If dissimilar amps are use they need to be horizontally bi-amped with a simple passive ($49 Schiit Sys) volume on the input of the louder amp so both amp can be level matched.
https://www.av2day.com/wp-content/uploads/2014/05/biamp1.jpg

Cheers George