How much does this cost to the nearest dollar?

Compatible with GMC Sierra Crew Cab Truck Alpine Bundle Type S Dual 12 Sub Box Enclosure with Harmony Amplifier & 4GA Amp Kit
This Package Includes the Following Items 1 x Harmony Audio Class D Mono 1600W Sub Amp 1 x Harmony Audio Class D Mono 1600W Sub Amp 1 x Harmony Audio HA-AK4 Car 4 Gauge Amp - Nickel 1 x Harmony Audio HA-AK4 Car 4 Gauge Amp - Nickel 2 x Alpine Type S Series Sub 1200W Peak 12 Subwoofer 2 x Alpine Type S Series Sub 1200W Peak 12 Subwoofer 1 x Chevy Silverado Crew Cab Truck Custom Dual 12 Sub Subwoofer Enclosure Box 1 x Chevy Silverado Crew Cab Truck

Price is $550.00
Price: $549.95