I have a rx-v 3900 yamaha receiver and i run it with my axiom vs-150,m-60,qs 8,and EP-500.I run the receiver in 8 omhs.

I first had a problem with my vs 150...there was no sound and when i contacted axiom they said that the drivers have failed and sent me a replacement speaker.Again after running for 10days the center speakers failed and again i found that all the 3 mid range drivers are blown.Is there are problem in my setup.i get no sound from my qs 8 as well on one side,,,i feel that the drivers in that too has failed.and today my sub also stopped working...no sound from the sub...i keep blowing all the drivers.Is it the problem that my speakers dont match the receiver ? Has anyone fased similier problems?
Ashok
India