Howdy Dave,
For those in the dark, the Heresy loudspeaker is part of the famous Klipsch Heritage line - the <perfect> compliment to a tube amplifier. The sensitivity is around 96/97dB (I forget). You will love the combo!
FYI, Dave, I'm using a pair of Klipsch Chorus II's for testing now. I need that 101dB sensitivity for when I get to that SET design. They do make a huge difference. When I first hooked up the stereo 35 to them I heard a lot of mechanical-type noise. I got worried that either the amp was messed up or that I had a defective horn. But I swapped the RCA inputs and the noise changed speakers- it was noise from my CD player! Ugh - time to research a new CD player.
The Klipschorns were a little too pricey for me. :shock:
shannon