The 10W1v3 is an outstanding choice when space is very tight and amplifier power is moderate. It features shallow mounting depth (4.6 in. / 117 mm) and a compact motor structure, allowing it to comfortably fit in a lot of spaces where a typical 10-inch driver will not. The 10W1v3-4 is best used with amplifier power in the 75W - 300W range and is optimized to operate in a compact 0.55 cu. ft. (15.57 l) sealed enclosure.