4 hole subwoofer box

Kicker 50CWCD124 CompC 12" Subwoofer, Dual 4-Ohm

4" Two-Way Speakers for Home Audio with Butyl Rubber Surround, 240W Max, Compact Design

Q Power Single 12" Triangle Ported Car Audio Subwoofer Box Enclosure (2 Pack)

Edifier® 70-Watt-Continuous T5 Powered Subwoofer with 8-In. Woofer, Low-Pass Filter, Auto Standby, Signal In/Out Ports, and MDF Enclosure

Pyle PLPW10D Power 10" 1000W 4 Ohm Car Audio Dual Voice Coil Subwoofer (4 Pack)

QPower Dual 12" Sealed Sub Enclosure Box for Toyota Tacoma Regular Cab 2005-2024

Kicker Two 45KM104 10" Marine Subwoofers 4-Ohm Charcoal LED Grill with SSV Universal Marine Sub Box Enclosures

PowerBass S-1204D - 12" Dual 4-Ohm Subwoofer

Fosmon 3-Gang 7.1 Surround Sound Distribution Wall Plate with Gold-Plated 7-Pair Copper Binding Posts, 1 RCA Jack, 1 High Speed HDMI 2.0 Port

Monoprice CSW-12: 12" 400-Watt Compact Subwoofer, High-Level Speaker Inputs, Crossover Setting, RCA Inputs

Kicker 52DCVR122 CompVR 12" dual subwoofers in vented box, 2-ohm

MTX TNE212D Terminator 12 Inch 1200 Watt 2 Ohm Single Voice Coil Car Audio Dual Loaded Subwoofer Speaker Box Enclosure for Vehicle Sound System

PowerBass S-1004 - 10" Single 4-Ohm Subwoofer

4) Pyle PDIC51RD 5.25 Inch 150W Round White In-Ceiling Wall Flush Speakers Four

Yorkville Heavy-Duty Steel Subwoofer Tube

MTX TERMINATOR 500-Watt RMS 2Ω Mono Block Class D Amplifier and Two MTX Audio 3512-04 35-Series 12" 250W RMS 4-Ohm Subwoofer

Monoprice 2 Gang 5.1 Surround Sound Distribution Coupler, Wall Plate

Kicker LX3000.1, (4) 12" Solo-Baric L7 2 Ohm, Subwoofer & 3000w Mono Class-D Amp Bundle (51LX30001)(44L7S122)

Pioneer® A-Series TS-A25S4 10-In. 1,200-Watt-Max 4-Ohm Single-Voice-Coil Subwoofer

PowerBass 2 S-1204D 12" Dual 4-Ohm Subwoofers

Crunch CRW12D4 12 Inch 800 Watt MAX 4 Ohm Dual Voice Coil Car Subwoofer Speaker

Planet Audio 12" 1800 Watt Car Audio Power Single Subwoofer DVC 4 Ohm (3 Pack)

Monoprice 4-Hole 1-Gang Keystone Wall Plate - Ivory

Kicker 50CWCS124 CompC 12" Subwoofer, Single 4-Ohm