N2
Lower fs (free air resonant frequency)
2k watts rms
11.125” mounting depth
.18 cuft displacement
5 spiders
N3
Higher fs (free air resonant frequency)
3k watts rms
10.250” mounting depth
.26 cuft displacement
5-7 spiders
Basically the N2 is more for a loud daily system and the N3 would be a lot louder but more geared towards spl and competitions.