The folks at Magnepan will tell you that high current is more important than high power. They (and others) will also tell you that for the average consumer, the best way to determine if an amp has sufficient current is to check its power output into 8 ohms and into 4. If it doubles its wattage into 4 (or close to it), while all other parameters stay the same (frequency range and distortion figures), then it's a high-current design. I'm not an electrical engineer, nor do I have access to whatever test equipment could actually measure amplifier current, but my last two power amps were better in that 8/4-ohm wattage measurement than my first two, and they sound much better with the Maggies I've owned (right now I'm driving my .7s with a pair of PS Audio M700 monoblocks).
