I currently have two Kicker L7 15's in a ported box with two Clarius CL1200 on each speaker installed in my 1999 Tahoe. I want to change my setup with a JL Audio 13W7 with JL audio 1000/1 amp. Will this one speaker be louder and better sounding than the L7 15's?? Also, will a Van Gogh 1600 amp...