Originally Posted by Zeus

True, my Alpine had the factory diploma as well.

But there are so many variables...most are geared towards getting the highest marketable rating - i.e. 14.4V, 2 ohm, mid-range frequency, THD > 0.10%, etc. In real terms, unless you are driving a diesel tractor or you have installed an upgraded alternator/voltage regulator, you won't be outputting 14.4V all the time. Ditto with the 2 ohm speaker load. Change those specs to 12V, 8 ohm and the numbers drop VERY fast. I suppose what was my point (I probably didn't state it clearly enough). Optimum vs. real situation power outputs. I agree that MB Quart has an excellent rep, I've never used their gear so can't comment first-hand.