one problem i could see is that they are 40-40k rather than 20-40k... that bass might pose some problem
I don't think it will be. All it means is the 20-40 Hz rolls off below the quoted +/- spec. It's still there. And those frequencies are more feeling than hearing.
fwiw, I always run the 12 dB/octave high pass on my V2 at a cutoff of 75 Hz and still get TONS of bass.