I got somebody interested in the ASPM-1300. I am contemplating whether I should just keep the ASPM-1300 or sell it for the $105 i'm selling it for and spending 7 bucks extra and getting the MB Quarts. The wattage different between them is 50 watts rms difference, but I'm not doing it for the wattage, I'm doing it for the efficiency, and just having a better amp. What should I do?? I need responses because the sale will go down today.