4 hole subwoofer box

PYLE PLPW8D 8" 1600W Car Audio Subwoofers Subs Woofers Stereo DVC 4-Ohm

Crunch CRW8D4 8 Inch 250 Watt MAX 4 Ohm Dual Voice Coil Car Subwoofer Speaker

Audison AVBX-10-D4-II AVBX 10 D4 II - 250mm 4+4ohm 1100W Sealed Subwoofer Box

QPower QBOMB, Single 10" Tough Vented Shallow Ported Car Audio Subwoofer Box Enclosure with 1.4 Cubic Feet of Air Space, Black

Audison AVBX-12-D4-II AVBX 12 D4 II - 300mm 4+4ohm 1100W Sealed Subwoofer Box

Jensen Bluetooth 3-Speed Stereo Turntable System with 3 CD Changer + AM/FM Dual Cassette and Remote

Crunch CRW10D4 10 Inch 400 Watt MAX 4 Ohm Dual Voice Coil Car Subwoofer Speaker

HIFONICS 12" 1600W Car Audio Subwoofers, DVC Speakers (2 Pack), Bundled with QPower Ported Enclosure Box

Fluance Fi70WW Three-Way Wireless High Fidelity Music System with Powerful Amplifier & Dual 8" Subwoofers

Memphis Audio PRX624 Power Reference Series 6-1/2" Selectable 4 or 2 Ohm Component Subwoofer

Q-POWER QBOMB15S QBOMB 15 Inch Sealed Car Single Subwoofer Sub Box Enclosure

Kanto SUB8 8-inch Sealed Powered Subwoofer (Matte Black)

Refurbished: Harman Kardon HKSOUNDSTICK4WAM-Z 2.1 SoundSticks 4 Speaker – Manufacturer Refurbished

QPower QBomb Dual Vented Horn Ported Subwoofer Box Finished with Bed Liner

Sonos Sub Mini Wireless Subwoofer

Planet Audio AC10D 10 Inch 3000 Watt 4 Ohm Dual Voice Coil Car Audio Subwoofers with Stamped Basket, Polypropylene Cone & Foam Surround, Black, Pair

JBL Club 122SL 12 Inch Shallow Mount Subwoofer - Each

Crunch 2 Pack CRW8D4 8" 250 Watt MAX 4 Ohm Dual Voice Coil Car Subwoofer Speaker

Pyle PLPW12D 12" 3200W 4-Ohm DVC Car Subwoofer Sub and Dual Ported Enclosure

MB Quart Reference 6.5" Subwoofer with 1.5" Voice Coils for Car Audio, 1200W

Planet Audio AC8D 8 Inch 1200 Watts 4 Ohm Dual Voice Coil Car Audio Subwoofer

QPower QBOMB12TB Dual 12" Triangle Ported Car Audio Subwoofer Box Enclosure

Polk Audio Signature Elite ES15 Compact Bookshelf Speakers - Pair