Features High excursion foam surround True Carbon fiber dust cap Custom Die cast Aluminum Basket Triple Layer Progressive dampeners Large Gauge push speaker terminals 3-inch-high temperature 4-layer voice coil Custom Rubber protective magnet band Triple stacked Y35 ferrite oxide magnet Specifications Structure 12" (30.48cm) Woofer Dynamic Power Handling 8000 Watts Nominal Power Handling 4000 Watts Impedance Dual 1 Ω Voice Coil PARAMETERS Resonant Frequency (fs) 29.414Hz D.C. Voice Coil Resistance (Re) 2 x 1Ω Mechanical Quality Factor (Qms) 2.108 Electrical Quality Factor (Qes) 0.443 Total Quality Factor (Qts) 0.366 Equivalent Air Volume to Cms (Vas) 21.008 L Mass of Diaphragm/Coil (Mms) 439.839 g Force Factor (Bl) 16.026 Sound Pressure Level (SPL) 82.7 dB Dimensions Overall Diameter: 12.91"/ 328 mmMounting Depth: 9.6"/ 244 mmCutout Diameter: 11.14"/ 283 mm Description Unleash the power of your music with the G7 12.1, the ultimate subwoofer designed to elevate your audio experience to new heights. This competition-grade subwoofer features a high excursion foam surround and a true carbon fiber dust cap, ensuring unparalleled sound clarity and durability. The custom die-cast aluminum basket and triple-layer progressive dampeners provide a robust structure that can handle even the most intense sound waves. With large gauge push speaker terminals and a 3-inch high-temperature 4-layer voice coil, the G7 12.1 is built for maximum performance. The dual 1Ω voice coil impedance and 8000 watts max power make this subwoofer a powerhouse, ready to deliver deep, booming bass that will shake your senses. The custom rubber protective magnet band and triple stacked Y35 ferrite oxide magnet ensure that your subwoofer stays protected and performs at its best. Whether you're a car audio enthusiast or a professional competitor, the G7 12.1 subwoofer is your ticket to an extraordinary audio adventure. Experience the difference with G7 Subwoofers – where power meets precision. Product Manual Product Manual PDF