4 hole subwoofer box

ATG Transcend Series 2500 Watt Class D Mono Amplifier with (2) 12" 4 Ohm DVC Subwoofers and 0 Gauge Amp Kit

Kicker Pontoon - Tritoon Boat Premium Audio Upgrade, (4) 6.5" LED Marine Speakers, 10" Subwoofer Enclosure & KMA 6Ch. Marine Amplifier Bundle

Wavtech THINPRO10-4 10” Professional Series Shallow 4 Ohm Subwoofer PAIR and LINK750.1PLUS 750 Watt Mono Amplifier

Kicker Marine KPX500.1 Powersports Amp & 10" Free Air 4 Ohm ( Charcoal Grill ) Subwoofer Audio Upgrade, Includes LED Remote

Kicker 48CWRT104 Subwoofer BR-DS10U Add-On & 47KEY5001, Bass Knob, CK8 Amp Kit Bundle Compatible With 2021-2025 Ford Bronco 4-Door Rear Door

Kicker (2) 50CWCS154 CompC 15" Subwoofer, Single 4-Ohm with CXA18001 Amp Bundle ( Includes Bass Knob )

Kicker (2) 51MWF104 - MWF 10-Inch Premium Marine Subwoofer (free-air) 4-ohm & 48KMA8001 Marine Amp & Bass Knob Bundle ( Includes LED Remote )

Kicker 51MWE124 - MWE 12-Inch Premium Marine Subwoofer (Enclosure) 4-ohm & 48KXMA4002 Marine Amp Bundle ( Includes LED Remote )

Kicker 48PXA6001 Weatherproof Powersport Mono Amp & (2) 12" 4 Ohm Free-Air Marine Subwoofer ( White Grill ) Includes LED Remote

Kicker 48PXA6001 Weatherproof Powersport Mono Amp & (2) 10" 4 Ohm Marine Subwoofer ( Charcoal Grill ) Includes LED Remote

Kicker 48PXA6001 Weatherproof Powersport Mono Amp & 12" 4 Ohm Premium Marine Free-Air Subwoofer (Charcoal Grill ) Includes LED Remote

Kicker 48PXA6001 Weatherproof Powersport Mono Amp & (2) 10" TB 4 Ohm Loaded Enclosure Subwoofer

Kicker Marine KPX500.1 Powersports Amp & (2) 10" 4 Ohm Premium Marine Free-Air Subwoofer (Charcoal Grill ) Includes LED Remote

Kicker 48PXA6001 Weatherproof Powersport Mono Amp & 12" 4 Ohm Premium Marine Subwoofer (Charcoal Grill ) Includes LED Remote

Kicker Marine KPX500.1 Powersports Amp & (2) 12" 4 Ohm ( White Grill ) Subwoofer Audio Upgrade, Includes LED Remote

Kicker (2) 51CWQ154 CompQ Q-Class 15" Subwoofer, Dual 4-Ohm

Kicker (2) 50CVX104 10" CompVX 4 Ohm Subwoofer & 46KW1620 16AWG 20ft Speaker Wire

Kicker 48VCVR122 CompVR 12" single subwoofer in vented box, 2-ohm w/ Speaker Wire Bundle

Kicker 50CWCD154 CompC 15" Subwoofer, Dual 4-Ohm with CXA8001 Amp Bundle

Kicker 50CWCS124 CompC 12" Subwoofer, Single 4-Ohm with CXA8001 Amp Bundle

Kicker Marine KPX500.1 Powersports Amp & 8" Solo-Baric L7S DVC 4 Ohm. Subwoofer Audio Upgrade

Kicker Marine KPX500.1 Powersports Amp & 10" 4 Ohm ( White Grill )Subwoofer Audio Upgrade

Kicker 48PXA6001 Weatherproof Powersport Mono Amp & 10" 4 Ohm Free-Air Marine Subwoofer

Kicker 51CWQ124 CompQ 12” 4-Ohm Subwoofer