Thanks for the quick response and the recommendations. To answer, I'm replacing a SONY 65 w per channel receiver (strd615, I think). I don't want to risk blowing another speaker because of distortion, assuming that's what caused this previous episode. Perhaps I'm just a bit more hard of hearing than I know, but I didn't get all that much volume from the SONY so I'm hoping it's the receiver and not me.
As for price, it's really not an issue up to 1000 or so. Could go a little higher if the benefits were there. I was looking at the Denon AV receivers but you seem to be suggesting straight 2 speaker audio amplifiers (Is that what 2 channel means? 2 speakers?). What you suggest is probably what I want. I'm not against putting in more speakers, but I only want to do it if there is some real enhancement to what I'll hear. I'm assuming a sub - which you say I can connect even to a 2 channel amp/receiver - will add something to the listening experience.
Do these answers make a difference to your initial response. Thanks Dr. !
Almost forgot. I have the SF3's which are rated at 100 watts per channel. I believe these were initially rated at 150 but Klipsch rerated and newer labels were put on the speakers showing 100 watts per channel. Hope that's right.