With a heavy dusty construction, the Sony XS-GTX120LW is a durable single-coil speaker that delivers deep bass effects and crystal clear sound at every frequency range from 30 Hz to 1000 Hz. Moreover, this Sony 12-inch car speaker also has an impedance of 4 Ohms for distortion-free audio and a sensitivity of 86 dB. It also features a peak power handling of 1200 watts and RMS of 300 watts. This Sony 12-inch car speaker is well-constructed with stroke stabilizer rubber surround, a five-sided polypropylene cone woofer for better response of power handling, and a large ferrite magnet. The cone in the Sony XS-GTX120LW single-coil speaker is combined with gold plated, five-way binding posts, which avoids external noise to ensure audio clarity. In addition, multiple layers of high grade glue ensures a long life and high quality spring loaded terminals prevent air leaks. The dimensions of this Sony 12-inch car speaker are 30.25 inches wide by 13.25 inches high (76.8 cm by 33.6 cm). Some other dimensions include top depth of 14.75 inches (37.4 cm), bottom depth of 14.75 inches (37.4 cm).