This Package Includes the Following Items:1 x Alpine S-A60M Car Audio Type S Series Amp Class D Subwoofer 1200W Amplifier1 x Harmony Audio HA-AK0 Car Stereo Complete 1/0 Gauge Amp Install Kit - Nickel1 x Harmony Audio HA-BT1 Car Audio Battery Terminal Pair (2) 8GA & Ring Terminal New1 x Harmony Audio HA-RT0 Power or Ground 1/0 Gauge 5/16" Ring Terminal - NickelAlpine S-A60M Car Audio Type S Series Amp Class D Subwoofer 1200W Amplifier:Product Details:Power Specifications - Subwoofer Channel:RMS Power @ 4 ohms: 400 watts x 1 channelsRMS Power @ 2 ohms: 600 watts x 1 channelsPower Specifications - Subwoofer Channel:Peak Power @ 4 ohm: 800 watts x 1 channelsPeak Power @ 2 ohms: 1200 watts x 1 channelsNOTE: This product can only ship to addresses within the USA and it's territoriesHarmony Audio HA-AK0 Car Stereo 1/0 Gauge Amp Install Kit - Nickel:Specifications:17FT Flexible Matte Blue 1/0GA Power Cable3FT Flexible Matte Black 1/0GA Power Cable20FT Flexible Matte Blue 16GA Speaker Wire17FT Flexible Matte Gray & Black RCA Cable17FT Flexible Matte Blue Remote Wire6FT Split LoomANL Fuse Holder250 Amp ANL Fuse(2) 1/0GA Blue & Black 5/16" Ring Terminals(2) 1/0GA Blue & Black Spade Terminals(5) 16GA Blue & Black Spade Terminals(4) Pan Head Screws(10) Wire TiesHarmony Audio HA-BT1 Car Audio Battery Terminal Pair (2) 8GA & Ring Terminal New:Specifications: Battery Terminal Pair Includes Positive & Negative (2) 8 Gauge Outputs(1) Ring Terminal Post