the v.2s are alot heavier duty, larger motor, uses an SA 8 spider and excursion is limited by the surround so over excursion won't destroy them like the v.1s. I've had both and the performance is very similar... I have a couple of E8 v.1s that need recones if you're interested. I know SPLAudio will recone them into v.2s.what is the difference between the v1 and the v2? is it the woofercooker updated leads and surround?