sub box ported

Premium Direct Injection Audio Box for Streaming with High-Quality Sound, Compatible with All Devices

Dual Cassette Deck for Recording with High-Speed Dubbing, CrO2 Tape Selector, Compact Design

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

QPower QBOMB8VL Single 8 Inch Vented Ported Car Subwoofer Sub Box Enclosure

SUGIFT 50W Bluetooth 5.0 Soundbar with 3D Surround Sound, Dual Full-Range Drivers, Wall Mountable, and Multiple Connection Modes

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

MTX AUDIO RT8PT 8 Inch 240 Watt Car Loaded Universal Powered High Performance Amplified Tube Box Vented Subwoofer Enclosure, RCA Connectivity

Monoprice Premium 5.1.2-Ch. Immersive Home Theater System - Black With 8 Inch 200 Watt Subwoofer

Sonos Sub Mini Wireless Subwoofer

QPower Single Triangle Car Audio Ported Subwoofer Box, Fits Most 12-Inch Subwoofers - Deep Bass MDF Enclosure, Tuned to 54 Hertz, 2.2 Cu Ft Air Space

Kanto Ren Powered Speaker System (white) And SUB8 Powered 8in Subwoofer (white) Bundle

Q-POWER QBOMB 10" Sealed Car Subwoofer Sub Box Enclosure | QBOMB10S Single

QPower QBASS Dual 10 Inch Heavy Duty Car Audio Subwoofer Enclosure Box, Charcoal

QPower QBOMB10TB Dual 10 Inch Triangle Ported Subwoofer Box w/ Bedliner Spray

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

Q Power 2 Hole 2014-2016 GM/Chevy Crew Cab 12" Ported Subwoofer Box | QBGMC14212

Q Power Dual 10 Inch Vented Port Subwoofer Sub Box w/ Bedliner Spray (2 Pack)

iLive 32-inch Bluetooth Soundbar with Wireless Subwoofer, ITBSW222B

Monoprice SSW-12 Powered Slim Subwoofer - 12 Inch - Black With Ported Design, 150 Watts, LowProfile Includes On-Wall Mounting Brackets

QPower QBASS Dual 15-Inch Vented MDF Subwoofer Sub Box Enclosure

BAE VGDI Direct Box

4) HIFONICS HFX12D4 12" 2400W Car Audio DVC Subwoofers Power Bass Subwoofers

JENSEN® Portable Bluetooth® CD Music System with Built-in Speakers, Cassette Player/Recorder, AM/FM Radio, and Aux, CD-550ABT

Vivitar Home Theater Soundbar System with 4 3” Full Frequency Drivers,2 Microphones, 2 Speakers and 6.5” Subwoofer