I have to disagree that the CN212 has less low end extension than an AE410. Could be a matter of perception, or attributed to differences in basses, right hand touch, or maybe one players defintion of "low end extension" is an other mans 'upper bass'. Not sure. But in any case, I have yet to gig the CN212 with any of my regular bands in familiar venues where I feel I am missing anything that I was getting from my former AE410.
I LOVED my AE410 and gigged it in every conceivable setting ranging from sparse to dense band mixes, quiet cocktail settings, stupid loud volumes on a couple occasions when there was no FOH etc. The AE410 never let me down. I would be happy gigging with an AE410 anytime. But the weight savings of the CN212 was just too compelling. I had to try one.
On a couple gigs with my AE410, a bass player friend that I respect said my sound was more tight and focused opposed to being punchy, focused "and" 'supportive.' The CN212 is the first single cab to come along and ever challenge and replace my AE410. I am well pleased and don't feel like I 'lost' any sonic capability whatsoever.
I personally feel the overall frequency response of the CN212 is somewhat more 'complete' in a band mix compared to my former AE410. It is my perception that the CN212 adds a 'supportive' punchy sound along with fast, focused, articulate complex mids and sweet top end .... like you get from a well recorded bass track in a studio music mix.
But that's just my opinion. Not meaning to be argumentative at all.