Soundstream STEALTH13BX Shallow Depth Loaded Enclosure 13" Single 4 ohm Stealth Series Loaded Subwoofer Enclosure Power Handling: Peak: 400 watts / RMS: 200 watts Solid aluminum cone 5" single 4 ohm voice coil Aluminum voice coil former 30"L x 14.5"W x 2.4"D(top) 5"D(base) Stealth-13BX is an engineered enclosure pre-loaded with a Stealth-13" woofer. Stealth-13BX was designed with the truck owner in mind. Its shallow depth, only 5" at the bottom, makes it an ideal fit behind the seat of a standard cab, or the rear seats of a full size truck It is also beneficial as a space saver in the trunk of a sedan, or cargo area of an SUV. This slim-fit design has a low-end frequency response of 20-500Hz, definitely covering the range of any bass notes from your favorite track.