Panasonic Car Audio CJ-SW2503 10-Inch Component Subwoofer

The sub also features long-throw voice coils that support linear movement in the diaphragm during the reproduction of large amplitude signals. Further, the coils are wrapped in a four-layer winding with heat-resistant wire to ensure high power handling. The superior heat resistance and dispersion extend to the aluminum bobbin construction, which keeps the sub performing reliably even at the maximum rated input of 1,300 watts.

Every Panasonic subwoofer is also equipped with large dual dampers, which maintain linear cone movement and suitable damping during large excursions. (Large input signals are often more than a single damper can handle.) The resulting bass is both controlled and powerful, so you can enjoy the full thunder of modern music without hearing excess distortion.

Other features include gold-plated screw-type terminals that provide a secure connection for heavy-duty, high-performance cables; a trunk mounting depth of 4.933 inches; and a magnet weight of 45 ounces. As with all Panasonic vehicle speakers, the CJ-SW2503 is backed by a one-year warranty.

What's in the Box
CJ-SW2503 subwoofer, user's manual.