The awesome midbass performance is still there with the new mkIII version as was the previous mkII version but the frequency range between 1,000 and 10,000 is massively improved with the mkIII. The new mkIII version is extremely clean all the way from 45 Hz up to over 9,000 Hz in-car. The previous version had cone breakup at/around 2,000/2,500 Hz. And the new carbon fiber mkIII is a solid 2 to 3 dB more efficient than the previous version so it is louder of the box all the way up through its total output capabilities.