I bought in my VW bus (T4), two of these gems, the two optimally loaded with a Mac Audio amplifier with 2x270Wrms and adjusted. After first soundcheck I am of the sound and the sound pressure - especially in a vehicle of this size - just loved it. Only some bass in genres such as hardstyle & Dubstep, so very hard and dry bass brings this sub out not so. Nevertheless, the sound is still acceptable even at these frequencies. The deep, rich basses (. Eg Hardstyle) is the sound pressure just terrific and the sound deep, crisp and just fat: D I would recommend this Sub safely, really a great part of the house JBL !!