Bass Box Infinity 12 Inch Subwoofer 2800w With Kenwood 1800w Amp 185 Pounds +

I have x 2 Infinity Kappa Subwoofer 1400w each totaling 2800w, with a Kenwood KAC-9103D 1800w Amplifier built within a solid carpet twin bass box with two air out-take holes. A video recording of its performance is available upon request. Details for Subwoofer and Amplifier follows: Infinity Kappa 1400w Perfect 12.1 Subwoofers: Nominal Power: 350 Watt RMS Size: 12” Peak Power Handling: 1400 Watt Frequency Response: 18 Hz – 200 Hz Sensitivity: 96dB Impedance: 4 ohm (Dual Coil) Woofer Material: Metal Surround Material: Butyl Rubber Top Mounting Depth: 6.50 In. Mounting Diameter / Length: 10.93 In. Kenwood KAC-9103 D-Class Amplifier: 1ohm Load Capability Built-In Variable Low-Pass & Infrasonic Filter 1800 Watts Maximum Output Power Cooling Fan Blue & Red Illumination Lights Approximate Product Weight 4.1kg … £185. (Over £600 has been spent putting this solid sound together)