Bazooka MT6552BS 6.5-Inch and 5.25-Inch Ma Tubbie, Black by Bazooka. $279.95. An additional member of the Bazooka marine family are the double ended marine tubbies. Just like our original marine tubbies, the double ended tubbies add more sound for your listening experience. One side offers either a 6-Inch or 8-Inch woofer along with a 5.25-Inch in the opposite end of the tubbie. Save 35% Off!