Perfect for someone looking for an easy to install subwoofer. Don't worry about running seperate wires for your amplifier etc. Fully integrated design, run only single wires I had this installed under the seat of a Subaru Outback and it fit great. 10 inches is the perfect subwoofer size in my opinion. ** Underseat sub speaker Bose pioneer alpine Kenwood subwoofer amplifier car audio radio Subaru Ford Toyota Lexus BMW Jeep Chevrolet Mazda **