Before buying CMT-170SE's, I tried Paradigm Studio 20's and could not listen for more than 12 minutes (to the 20's) before my ears literally hurt. The 170's were great, no fatigue. I moved the 170's to the HT and have been using Celestron 1's for my 2 channel bedroom. I moved the speakers on wall mounts, now they are radiating directly towards my main listening area. Same painful experience. I've tried 2 different apms (Rotel & Trends Audio) I'm experiencing the exact same fatigue. Not sure If I am overly sensitive, but my question is, are the Sierra's likely to not cause fatigue as the 170's? Thanks