quad 8 inch subwoofer box

Kicker (2) 49L7X82 - SoloX L7X 8-Inch Competition Subwoofers & WXA3600.1 Warhorse Mono Amplifier

Kicker 48CWRT102 CompRT 10" Subwoofer, DVC, 2-ohm - Includes Speaker Wire

Kicker (2) L7S82 L7S 8" Subwoofer, Dual Voice Coil, 2-Ohm & 52GL78 Grill Bundle

Kicker 48TCWRT82 CompRT 8" subwoofer in thin profile enclosure, 2ohm with 47KEY5001 Amp Bundle

Kicker Marine Bass Tube & Amp Kit – 46CWTB82 8" Subwoofer Tube + 48PXA6001 Amp – DIY Boat Audio Upgrade for Pontoon & Wake Boats

Waterproof 8" Marine Wakeboard Tower Speakers for Boating with 300W Power, Dual Speakers, Compatible with All Audio Devices

Kicker 48CWRT104 CompRT 10" Subwoofer, DVC, 4-ohm - Includes Speaker Wire

Kicker Pontoon - Tritoon Boat Audio Upgrade, (4) 8" LED Marine Speakers, 10" Subwoofer tube & KXMA 5Ch. Marine Amplifier Bundle

Memphis Audio PRXE12DFT Dual 12" LED Loaded Subwoofer Box + PRX800.1V2 800W Mono Amp Bundle w/ 4 Gauge Wiring Kit & LED Controller

Kicker 48TRTP82 TRTP 8-inch Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm

Kicker (2) 48CWRT82 CompRT 8" Subwoofer, DVC, 2-ohm w/ Speaker Wire, Grill Bundle

Kicker (2) 48CWRT84 CompRT 8" Subwoofer, DVC, 4-ohm w/ Speaker Wire, Grill Bundle

Kicker 44L7S82 Solobaric L7 8" Subwoofers Bundle - Dual 2-Ohm Voice Coils for wiring to a 2-ohm monoblock amplifier

2) Boss CH10DVC 10" 3000W Car Subwoofers Subs Woofers 4 Ohm+Vented Box Enclosure

Kicker 43TCWRT82 CompRT8 8-inch (30cm) Subwoofer in Thin Profile Enclosure, 2-Ohm Bundle

MTX 12-Inch 1200-Watt Car Audio Dual Loaded Subwoofer Box Enclosure & Crunch PowerDriveX 1000 Watt 2 Channel Exclusive Blue A/B Car Stereo Amplifier

Diamond Audio DESMB8DA Dual 8" Slot Vented Active Subwoofer Enclosure (2Ω)

Kicker VCWC122 CompC 12" Subwoofer in Vented Enclosure 2-Ohm

Kicker 48CWRT122 CompRT 12" Subwoofer, DVC, 2-ohm - Includes Speaker Wire

Cerwin Vega Marine 5 Channel Amplifier with (2) Pair RPM Stroker 8" Black/Stainless and RPM Black 10" Subwoofer

Cerwin Vega Marine 5 Channel Amplifier with (2) Pair RPM Stroker 8" White/Stainless and RPM White 10" Subwoofer

Kicker Solo-Baric L7TDF 8" Loaded Down-Firing Subwoofer Enclosure

Kicker 46CWTB82 8" 2-Ohm TB-Series Subwoofer Enclosure with Passive Radiator

Wet Sounds REVO 8 FA S4 V3 - REVO Series 8" Free Air 4 Ohm V3 Subwoofer