I had a pair of CF 4 when they came out and they were awesome speakers. Unfortunately they were way too big for my listening room, so as much as I liked them they were just huge. Anyway , shortly thereafter I switched to several stand mounted monitors and a sub . All which were very good , but none had the sense of scale and weight of those CF 4 ....... I have a great pair of Quicksilver amps that I love so I started looking at higher efficiency speakers to get the most out of them and thats when I decided to look at the Heresys. They checked off all the boxes for me, compact, easy to drive , sealed cabinet, can go close to the wall. So I demo' d a pair last week and ordered a pair. It was weird listening to them without a sub, they really drop off like a rock around 60 hz , but with a good sub they rock. Can't wait.