i run the wire in my car , silver tinned ofc true 1/0 ...pretty much best ur gonna find and its a good price . the VCW 12 and X series 12 are my favorite subs they make . the vcw loves the lows and gets plenty loud ! the X series is one of the cleanest subs you will ever hear if its installed rite and in the proper box . i love my X series and wont ever get rid of it . the speakers are pure awesome also . i had the nsp65's to start with , loved em so i tried the VSP65's and they are totally worth the extra cost , now i have the VSP 65 kit . the crossovers in the kit are very very nice and the set performs like its a 500$ set of speakers !!! honestly for the prices all their products are hard to beat ..... and dont go by the nvx website, , if ur gonna go direct call em and use the mazda2284 code for a discount or ... check out sonicelectronix or hit up a nvx dealer .
not only do they have very nice products their customer service is above and beyond .