Testing New DD Audio System: 2x M4a @ 2ohm & 2x Redline 815d1

DD Audio M4a: Channels 1 Cont Power at 1 Ohm 5200W x 1ch @ 12v, 7000W x 1ch @ 14.v Damping Factor 150 Dimensions US 27.63" x 9.12" x 2.5" Dimensions Metric 70.17 x 23.16 x 6.35 cm Dynamic Power 9500W Efficiency Thru Output 87% Input Sensitivity 0.15v - 5v Shipping Weight 37 lbs / 16.78 kg Wire Gauge Power and Ground 2 x 0 AWG Wire Gauge Speaker Output 10 AWG DD Audio Redline 815d1: Size 15" Power handling 2 x 1000W/rms 6000W/peak Impedance 2 x 1 Ω Voice coil diameter 4" Xmax 75mm Weight 23.7kg specifications: 815 Continuous Power Range: 1000-2000 watts Burst Power: 6000 watts Impedance Options: D1.0 Ohm/ D2.0 Ohm Suspension Type: Triple stack 9 layer composite Woofer Diameter: 15" Coil Diameter: 4" Magnet Weight: 325 oz *SPL : 88.17 dB @ 1w/1m Fs: 37.01 Hz Qts: .481 Qes: .531 Qms: 5.067 Vas: 1.80 cubic feet Xmax: 18 mm 2-Way Suspension Travel: 80 mm Displacement: .21 cubic feet Frame OD w/ gasket: 15.625" A - Frame OD w/o gasket: 15.4375" B - Cutout Diameter: 13.875" C - Mounting Depth: 8.125" D - Motor Diameter: 9.5" E - Motor Height: 3.75" F - Surround Height: 1.375" Shipping Weight: 55.8 lbs F - Outside Height: 1.375