I've never been one to pay too much attention to the spec sheets on all my gear, partly because I never believed the manufacturers anyway, partly because I didn't understand half of the measurements. I've been trying to educate myself over the last year or so..

There's a few that I came across last night that I never paid much attention to before that I need help with...

1st: Damping factor - what the heck is that, and why should I care?

2nd: Dynamic headroom at 4 Ohms - I know what dynamic headroom is, but if I'm running at 8 ohms is there a magic formula to determine how many dB's of dynamic headroom I have based on the 4 Ohm number given?

Finally: Is there a direct relationship between "power consumption (ie: 550 watts) and an amplifier/receivers "power output"...if so what?

To all you learn-ed people that answer...thank you!!!