Goodmorning to all of you. I'm a new italian owner of a pair of old and used Heresy HWO. Their s/n is 119W162 and 119W163. They plays wonderful and I am very, very satisfied of their sound. QUESTION: can someone kindly explaine to me why there are two differents woofers, both K-22-E, but one whit a squared magnet and the other with round magnet? I repeat: both marked K-22-E. Their colour's is slightly different, and on the dome of one I can see two copper wire covered with paint, nothing on the other. Inside wooden boxes, the crossover is mounted symmetrically: in one of them on the right wall, the other on the left. Is this normally or not? My doubt is that it was necessary to replace one of the two, and the required part has arrived with the same symbol, but with a different shape. Should I be worried? I have to change one of the two woofers? Which one? They sound like no other pair of speakers, with my little Marantz 1070 . Thanks for the replies. (Sorry for my english.)