I've read several suggestions to newbies (like myself) that they should match their speakers to their receivers in regards to ohms. This got me to thinking about my recent new setup. My Pioneer suggests speakers between 8-16 ohms. My Cerwin Vega speakers list a 4 ohm rating. Since my basic understanding of ohm in regards to a measure of impedence. I'm figuring that low ohm rating means low impedence... therefore my speakers should be fine. If I were to have speakers rated at say 18-20 ohms (if there are such things)... then I would have a problem because the receiver will only push between 8-16 ohms. Is this correct? I've looked for such questions on several FAQ and not had any luck.