DB Drive WDX PRO3000.1D : Mono Full-Range Class D Amplifier Enclosed Subwoofers the Alpine i407-WRA-JK does support

the Alpine i407-WRA-JK does support the SiriusXM SXV300V1 SiriusXM Tuner (sold separately) and you can utilize the factory installed SiriusXM antenna

and punishing sunlight

48cm) Woofer Dynamic Power Handling 8000 Watts Nominal Power Handling 4000 Watts Impedance 2

Important Note - Monitor dimensions are 10

The crossovers have two inputs (shorted together)

DB Drive WDX PRO3000.1D : Mono Full-Range Class D Amplifier Enclosed Subwoofers the Alpine i407-WRA-JK does supportFeatures ATC Audiophile RCA Connectors ACT Adaptive Crossover Technology High efficiency Class Full Range Class D Technology 4 Gauge Direct Connect Speaker Terminals 4 ga. Gauge Power Wire Inputs APC Audio Protection Circuit SESI Signal Evaluation Status Indicator Bass Remote with voltage , temperature and signal status indicator CHM Collective Heat Management Specifications ATC Audiophile RCA Connectors ACT Adaptive Crossover Technology High