I used to use two Golith 4x10's for a long time and after a while I got tired of their weight; 80 lbs. each! I went to two Bag Ends; a 1x15 and a 1x15 coaxiel; 40 & 45 lbs. One of the smartes bass decisions I've ever made. They sound awsome. I used to use an SWR SM400, now I use a Orange Bass Terror 500.