most amps give a 8 and 4 ohm stereo rating... 4 ohm being almost double in some cases but always more power....with that being said i am curious of distortion, i have been told that the higher the impeadance the less distortion.... so a pair of 8 ohm speakers will be less distortion than a pair of 4 ohm,,,,/?? is it audible or is it a number on paper?