For example here is a distortion plot and cummulative spectral decay of a mid range driver. Nice because it is playing at 96 db SPL at 1 meter (that is real world music loud - so it is playing at useful levels not soft levels for the test - this takes care of dynamics cleanly).
Distortion and Cummulative Spectral Decay (CSD) Note the CSD goes to -35 db which is an entire 10 db lower than you usually see on Stereophile plots - and remember you can ignore the breakup/resonances above 4K as this would be removed or taken care of by a crossover (it is a mid range driver - it can do tweeter duties)
The dispersion is nice and even also - see Dispersion plot
Distortion and Cummulative Spectral Decay (CSD) Note the CSD goes to -35 db which is an entire 10 db lower than you usually see on Stereophile plots - and remember you can ignore the breakup/resonances above 4K as this would be removed or taken care of by a crossover (it is a mid range driver - it can do tweeter duties)
The dispersion is nice and even also - see Dispersion plot