Alpine SWT-12S4 12" Bass System with Alpine KTA...

Alpine SWT-12S4 12" Bass System with Alpine KTA-30MW Mono Weather Resistant Tough Power Pack ...

Alpine SWT-12S4 12" Bass System with Alpine KTA-30MW Mono Weather Resistant Tough Power Pack Amplifier and RUX-KNOB.2 Alpine SWT-12S4 12" Bass System with Alpine KTA-30MW Mono Weather Resistant Tough Power Pack Amplifier and RUX-KNOB.2 Bass Knob - This bundle includes an Alpine KTA-30MW Mono Tough Power Pack Amplifier 200 RMS x 1 at 4-Ohms / 300 RMS x 1 at 2-Ohms, an Alpine SWT-12S4 1500W Max Single 12" Sealed Subwoofer Tube Enclosure.   Alpine KTA-30MW Car Amplifier Mono 300-Watt RMS W...