NVX has the best quality, probably the best cone & surround material I have looked at IMO.
I replaced my Kicker CVR104's for these newer brand subs.
NVX quality & craftsmanship has impressed me ever since I purchased some of thier rca audio cables recently.
I put these in my '12 Tacoma double cab with limited back space and RMS capability/mounting depth/box space. Paired the subs with a Rockford Fosgate T1000 @ 2ohm load. The end result is fantastic!!
These are SUPER accurate while being more loud than I could've imagined. There is SO MUCH force with these I had to secure the box to the backwall so the subs/sub box didn't run away from vibrating so much!! I did alot of tinkering & there were plenty of times I felt that I was going to damage or puncture the surround, it is an extremely flexible strong material. NVX really hit the ball out of the park, High rms rating with limited space is just fantastic! I am absolutley exstatic for my purchase & I wish NVX the best~