This bundle contains an MTX S6512-44 S65-Series Square Subwoofer with 500W RMS, a BS112V-SQ Bass Slammer Subwoofer Enclosure, and a JH5001 Jackhammer Series Amplifier. Optimize your audio experience with these top-notch devices, each with its own distinctive features. The S6512-44 Subwoofer (12", Dual 4-Ohm) offers a 23Hz-130Hz frequency response, 86.7dB sensitivity, and patented surround geometry that boosts its effective Xmax. The resulting SPL and volume displacement exceed similar subwoofers, making it the loudest 500W square subwoofer available. Spider Plateau Venting efficiently removes hot air from the 2" voice coil, supporting reliability and longevity. The radial ribbed T-yoke dissipates extra heat, enabling distortion-free sound for prolonged periods. The BS112V-SQ Bass Slammer Enclosure complements square subwoofers like the Kicker L5, L7 Solo-Baric, and MTX Thunder Square woofers. Made in the USA with high-quality wood, this durable, high-performance enclosure features dark gray aviation-grade carpeting, spring-loaded speaker terminals, and 3.0 cubic ft. of internal airspace. Measurements: 15-1/4"H x 20-1/4"W x 15-1/4"D. The JH5001 Jackhammer Series Amplifier (Mono Block, Class D) provides easy access to adjustable gain, low pass filter, subsonic filter, and bass boost. The input section has high quality RCA for easy connections, an auto turn-on feature, and selectable input signal. Power and speaker connections accept standard 1/0-gauge wire and up to 12-gauge speaker wire respectievely and the unit plays down to 1Ω loads. Control your crossover variables, bass boost, and more with the remote bass knob. This amplifier delivers an RMS power output of 225W x 1 at 4Ω; 375W x 1 at 2Ω; and 550W x 1 at 1Ω, with a THD of less than 1%. Its frequency response is 20Hz-250Hz. Give your audio experience a boost with this unbeatable trio of quality audio equipment designed, diligently crafted, and expertly engineered by MTX Audio.