I often see some pretty lame excuses disguised as answers to some common questions reguarding Amplifiers and Speakers, Impedance, Power, how , why and what ifs. Though I don't have the time nor the desire to write a book on the subject, here are a couple of papers that do a damn good job explaining Impedance, Power, and other commonly asked questions.
So Feed Your Brain.
http://www.peavey.com/support/techno.../impedance.cfm
http://www.stereophile.com/reference/1106hot/index.html
And if you're hungry for more.
http://www.arrl.org/
http://www.qrz.com/p/testing.pl
If you have to ask what the last two links have to do with the first two then click another thread. Simply put , EVERYTHING !
Rock on fockers
C.T. :wink: