Mirage OMD5 >better> OS3 >better> Nanosat>better>MX
frequency response: to be confirmed / 70-20kHz / 110-20kHz / 110-20kHz / 110-20kHz
If you are using enter level AMP, the crossover have to associated with front speakers. When 80Hz is the most prefered setting of AMP, you will lose a frequency from 80 to 110 Hz. That means you will miss something. Of course, you may change the crossover from 80 to 110Hz. Nowadays, the higher graded AMP may be setted individually. You have to consider to all system even you know Frequency Response.