6-1/2"e; ATS Series Shallow Mount 2-Way Car Speaker System Peak: 300 watts RMS: 60 watts Silver Alpha-Cellulose Polypropylene Cones - Treated Pressed Paper Cone UV Resistant Rubber Surround Neo Mylar soft dome tweeter Impact resistant tweeter elements High mid-bass impact Anti-resonant stamped steel basket Wide nominal power range 4 ohms impedance Spade speaker terminals Installation hardware included Top-mount depth: 1-3/4"e; Grills Included