I bought a JL sub in a sealed box today along with an alpine amp. I need to know several things. How can I tell what the sub is? W3? W6? I took it out of the box and it doesn't indicate on the back of the speaker only "VRC" across the magnet With the sub came an alpine amp. I was wondering if anyone could give me the power rating for it - it is a "V-Power 2/1 channel Power amp. #MRP-T130. Also the centercone of the sub is comming loose - I was wondering what JL's policy was for warranty etc etc. If there is a way i could squeeze a new speaker out of them that would be awesome - I'm in no hurry as the truck is in a million pieces right now but I'd like to get the ball rolling ASAP. Thanks in advance.