RGD, going by the experience that i had with them, they will fill out slightly but not by a massive amount. Your assesment of appr. 250 hours is probably in the ballpark, but may vary with how much power you put through them. I ran my Oval 9's for over 500+ hrs. and thought that they were notably lean and tizzy sounding. Believe me, i was not "shy" with pumping some power through them either. On the other hand, i know others that have tried them and said that they came across as sounding "warm" in their system. Like i said, a love / hate kinda thing that's very system dependent. Sean >
