ive been trying to find some plate 4x6s by alpine and i seem to only come across one set, the ALPINE SPS-4629P. they are in crutchfield and say that they handle 40 rms which is ok cuz im hooking it right up to the reciever. but it says they are coaxial??? what does that mean...ive never heard that term used in car audio before??any help??
