Thank you, moray james. Klipsch tech support did email me back when I first encountered problems: "It sounds like you may be
reaching the limits of the tweeter and/or your amplifier is clipping which can
cause damage to any speaker high-frequency drivers." So, Klipsch agrees with you that damage may have occurred to my HF driver. I swapped the connections at the amp and that right ch. speaker still sounds "harsher" in the highs than the left ch. How do I know if it is a damaged driver vs a crossover that needs repairing? I work in health care and I'm not comfortable taking apart my speakers. I contacted a local guy for speaker rebuilding, he thinks "I've been reading too much" and I should break in my rebuilt amp before addressing the speakers. He said he could upgrade the crossovers for $400/pr., but didn't seem eager to do so. I am interested in Mr Crites's work with Klipsch speakers, which I can afford much easier than a new set. I just don't know enough to be confident I'm sending him the right parts to repair/rebuild. I will contact Mr. Crites and see what advice he may offer. Thanks again for your help, moray james. Best regards, Miles.