Just installed JL M series in my hells bay guide with a rockville m10 1200W phenom amplifier. my dad and i did the installation ourselves. Yesterday i played the speakers for the first time and they are not sounding right. you can barely hear the vocals/highs/mids, but the lows/bass is all there. has anyone else had this problem? what is the problem? we played around with all the frequency knobs on the side of the amplifier and it didn't make anything better. all the wires are put in the right places with good connections at least to our knowledge and my dad is experienced with wiring and electrical so i don't know what the problem could be. Any help would be greatly appreciated.