sorry, another quick question(s)...I have seen that this amp has "end caps" that make it the dimensions the ones you quoted, yet the dimensions WITHOUT the endcaps are-- 10-5/16"W (6-3/4" w/o endcaps) x 2-11/16"H x 9-5/8"L .... soooooo, I am wondering if the amp can be used without end caps...