Hi Artisan,

Matching 8 ohm or 4 ohm specifications is meaningless. In fact it is impossible. Loudspeaker impedance is not constant and varies with frequency. For example if you look at the impedance graph of the M80 it ranges from 9ohm to almost 10ohm between 1k - 1.5k and dips as low as 3.2 ohms at 20 hz. 8ohm or 4ohm stated in manufacturers specifications is more or less an average.

http://www.axiomaudio.com/gallery_disp.html?image=M80-imp.gif&title=M80

The only thing you have to be careful with in regards to impedance is impedance minimums (below 4 ohms) and those occurring in the lower frequencies as that is what causes receivers or amps to go into current limiting/overheating.

I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne