Thanks Dr. House..that was great article...I don't know how many times I asked this impedance business in different forums and got answer all over the place. Dean was actually big help for me clarifying this impedance issue with me. I even experment with my onkyo3007 to select 4 and 6 ohms(highest setting for reciever..I don't really notice any difference..So I'm back to 6 ohms setting and so far no shutdown. I have my system for 3 weeks now and enjoying it. Again great article. thx

It's no use carrying an umbrella, if your shoes are leaking.