Yeah about that, the a950 ltd and ad2000 both have visceral resonant impact on the low-end. It's a quantity you can feel when amped properly.
The ad900 certainly is no slouch in terms of bass extension but it's too bass anemic for my tastes. Also, the bass on my sa5000 is light years faster than the ad900.
The ad700 is a different story, I even prefer their younger brothers.
The endpoint is this, if you think the ad2000 doesn't have enough bass then no can will satisfy you unless you want a very colored can.
I haven't tried the ad2000 which is why I'm trying to get an idea of what it sounds like. It completely sucks that I can't try it before I buy it (No I did not mean to make that rhyme ). Being in the UK nobody sells these so I will have to import them at a very dear price. It seems from your profile you have previously owned the 80/225's and ksc75, both of which I have tried. Would you mind giving a comparison in the bass department if you can. Would be greatly helpful and appreciated.