Hi Wayne, I actually asked the Dealer how many hours the Alexia's had on them before the demo and was told they had around 250hrs. They were ex-demo from a Sydney Dealer & had done duties at the Melbourne Hifi Show. If anything i'd expect a fully run in pair of S5's to further overtake the Alexia's in my view. Though bare in mind that is just my subjective opinion, and as always YMMV.