4 hole subwoofer box

Memphis MJP1022 MOJO Pro Series 10" Subwoofer With Dual 2-ohm Voice Coils with a MJP1000.1 1000W Monoblock Amplifier and Memphis 4 ga Wire Kit

PowerBass XL-1244 - 12" Subwoofer Single 4-Ohm VC 400Wrms / 800Wmax

Hertz HMD1 High Power Marine Mono Amplifier with HMS 12 S4-LD-G - 12" 4-Ohm Marine Subwoofer with RGB LEDs, Gray Sport Grille

Wavtech THINPRO10-2 10” Professional Series Shallow 2 Ohm Subwoofer PAIR and LINK750.1PLUS 750 Watt Mono Amplifier and link500.4mini - 500 Watt 4-C...

Kicker LX3000.1, (2) 12" CompQ 4 Ohm, Subwoofer & 3000w Mono Class-D Amp Bundle (51LX30001)(51CWQ124)

Kicker 51MWE104 - MWE 10-Inch Premium Marine Subwoofer (Enclosure) 4-ohm & 48KXMA4002 Marine Amp Bundle

Memphis MJP1222 12" Dual 2 Ohm MOJO Pro Subwoofer with a MJP1000.1 1000W Monoblock Amplifier and Memphis 4 ga Wire Kit

Kicker 46L7T124 L7T L7-Thin 12-Inch (30cm) Subwoofer, Dual Voice Coil, 4-Ohm, 600 Watt w/ Charcoal LED Grill Bundle

Kicker (2) 45L7R104 L7R 10-Inch (25cm) Subwoofer, Dual Voice Coil, 4-Ohm w/ Charcoal LED Grill Bundle

Alpine (2 pair) SPV-65X-WRA Front and Rear JK Speaker Upgrade Kit & PWE-S8-WRA 8" Compact Powered Subwoofer System for 2011-Up 4-door Jeep Wrangler

Wet Sounds ZERO Series - ZERO-12-S4-XZ-B Black 12" ZERO Series 4-OHM Marine Subwoofer with ZERO-12-ENC 12" Weatherproof, Roto-Molded Subwoofer Encl...

Alpine R2-W8D4 Next-Gen 8" R-Series Subwoofer Dual 4-Ohm with KTE-8G.3 Grill

Wet Sounds REVO 12 HP S4 V3 - REVO Series 12" High Power 4 Ohm V3 Subwoofer, Black

Kicker (2) 51MWF124 - MWF 12-Inch Premium Marine Subwoofer (free-air) 4-ohm & 48KXMA9005 Marine Amp Bundle

Kicker 48CWRT102 Subwoofer BR-DS10U Add-On & 47KEY5001, CK8 Amp Kit Bundle Compatible With 2021-2025 Ford Bronco 4-Door Rear Door

Cerwin Vega Marine Bass Upgrade 4 Channel Amplifier with (2) 10" 4-Ohm White Subwoofers and Install Kit

Kicker 46L7T104 L7T L7-Thin 10-Inch (25cm) Subwoofer, Dual Voice Coil, 4-Ohm, 500 Watt w/ White LED Grill Bundle

Kicker (2) 46L7T104 L7T L7-Thin 10-Inch (25cm) Subwoofer, Dual Voice Coil, 4-Ohm, 500 Watt w/ Cast Aluminum Grill Bundle

Kicker (2) 46L7T104 L7T L7-Thin 10-Inch (25cm) Subwoofer, Dual Voice Coil, 4-Ohm, 500 Watt w/ Charcoal LED Grill & Remote Bundle

Kicker 45L7R124 L7R 12-Inch (30cm) Subwoofer, Dual Voice Coil, 4-Ohm w/ Charcoal LED Grill & Remote Bundle

Kicker 45L7R154 L7R 15-Inch (38cm) Subwoofer, Dual Voice Coil, 4-Ohm & 46QW1220 12AWG 20ft Speaker Wire

Kicker 48CWR84 CompR 8" Subwoofer, DVC, 4-ohm - Includes Grill

Kicker (2) 46L7T124 L7T L7-Thin 12-Inch (30cm) Subwoofer, Dual Voice Coil, 4-Ohm, 600 Watt w/ Charcoal LED Grill Bundle

Kicker (2) 45L7R124 L7R 12-Inch (30cm) Subwoofer, Dual Voice Coil, 4-Ohm & 46QW1220 12AWG 20ft Speaker Wire