Hello; I have ben lurking for a while but decided to respond as to the reliability of Klipsch for live situations. I purchased a set of LBR speakers for my home system in 1982. I slowly started using them for pro gigs. My biggest concern was scratches and dents. I had covers made for them. As time went on, they were less pristine. Their final configuration was in a three way setup with Peavey FH2's for low end, the Klipsch 15" was my mid and the horns were the highs. At one point we were dubbed the loudest band on the San Antonio riverwalk, got complaints from the 8th floor! I ran this setup for around 10 years with the 15" powered with a QSC MX1500 until one detached from the voice coil. 375 watts into 8 ohms with 3db headroom. I'd say not bad for 3.75 times the rated woofer power. Never blew a horn using a similar amp. My MCM 1900 subs were powered by an MX3000 since the early 90's. The amp will blink now and then which makes me paranoid but they keep on trucking! Now that I am old, fat and lazy I have replaced the HEAVY QSC amps with Carver PT series. Same era but a hell of a lot lighter!
Cheers
Phil!