[Anton Miller]

Surprised no one else has mentioned it yet. The huge fact of efficiency comes into play. I have seen a lot of amps efficiency drop to 65-75% at low impedance. Where as at higher impedance many amps go up to as high as 90%. To some this means nothing but to others it is important.

The real importance to me lies in the amperage/voltage flowing through the coil. Lets say I want to put 1000w through a coil. I could at .5ohm (44a/22v) or at 2ohms (22a/44v). Now at 2ohms I have 1/2 the current going through the voicecoil then I would with .5ohm. This results in less heat, which means less chance of hitting the thermal limits of the subwoofer. Some people are asking, well why dont more people do this? Well simple answer is people enjoy cheap dirty power because well it does enough to get the job done.

not to mention the ability to play more "flat" depending on impedance curves. every note has a different power, if your box is designed right you will play more flat if you wire higher or lower depending how its designed. 1x rise at 20hz and a 5x rise at 40 hz but your peak is 40 hz, so wire higher youll get less power at 40hz thus toning down the volume and since you get hardly any rise youll have the power needed at 20hz to get MORE output. if that doesn't make sense, I apologize. I don't have much more time than this to explain on break lol