two 12 in subwoofers .

hello. I have two 12 inch 1000 watts subwoofers in to boxes, one of them as stopped working and the over one still works but it sounds a little bit distorted i spock to some one in halfords and hes said there is some one cheep and locerly that can rebuild them, im not becouse im doing a new bigger boot install. p.s iv not put any pitchers up becouse it wont let me