18 inch powered subwoofer

Wet Sounds REVO 12 HP S4 V3 12" High Power 4 Ohm Subwoofer with REVO 12 XS-G-SS GRILLE V3 - Gunmetal & Stainless XS Style Grille and PORTED-12-ENC ...

Wet Sounds REVO 12 HP S4 V3 12" High Power 4 Ohm Subwoofer with REVO 12 XS-B-SS GRILLE V3 - Black & Stainless XS Style Grille and PORTED-12-ENC 12"...

Wet Sounds REVO 12 HP S4 V3 12" High Power 4 Ohm Subwoofer with REVO 12 XW-B GRILLE V3 - Black XW Style Closed Grille and PORTED-12-ENC 12" Rotomol...

ELAC DS123-BK 12" Debut 3.0 Powered Subwoofer – 400W Peak Class D, Sealed Cabinet, 28Hz Low-Frequency Extension, LFE & High-Level Inputs – Black As...

Yorkville Heavy-Duty Steel Subwoofer Tube

Memphis PRX10FT Power Reference 10" 1/2/4 Ohm Selectable Impedance Subwoofer

Monolith M-IWSUB82 Dual 8in In-Wall Subwoofer| Passive, Paintable, Easy Install, Adds Powerful Bass to In-Wall or In Ceiling Home Theater System

JBL BassPro 12 Car Audio Powered 12" Subwoofer System with Slipstream Port Technology

Alpine PWE-S8 Compact Powered 8" Subwoofer System

Polk Audio Monitor XT20 High-Resolution Bookshelf Speakers - Pair

Monoprice SW-12 400 Watt RMS 600 Watt Peak Powered Subwoofer - 12in, Ported Design, Variable Phase Control, Variable Low Pass Filter, For Home Theater

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

VEVOR 10" 240W Underseat Car Subwoofer, Slim Powered Car Subwoofers Under the Seat, Low Profile Audio Sub Built-in Amplifier, Black

Monolith MM-5R Powered Multimedia Speakers Ribbon Tweeter - Black (Pair) With Bluetooth with aptX HD, USB DAC, Optical Inputs, Subwoofer Output

Waterproof Bluetooth Outdoor Speaker System for Streaming with 500W Power, Wall Mountable, Compatible with All Devices

Jensen JW10A 10" Powered Subwoofer Enclosure

Refurbished: ION Party Rocker Go High-Power Portable Boombox with Party Starter️ Lights - Manufacturer Refurbished

Memphis PRX824v2 Power Reference 8" 2/4 Ohm Selectable Impedance Subwoofer

Wet Sounds REVO 10 HP S4 V3 - REVO Series 10" High Power 4 Ohm V3 Subwoofer, Black and Wet Sounds REVO 10 FA SW-W GRILLE V3 - White Salt Water Gril...

Mackie Thump212 12" 1,400W Powered Loudspeaker

Elac DCB41-OR - Debut ConneX 4.5" Powered Speakers - Orange, Pair and Elac PS250-BK - Varro Premium 10" 250 Watt Powered Subwoofer with Auto-EQ

Elac DCB41-OR - Debut ConneX 4.5" Powered Speakers - Orange, Pair and Elac PS350-BK - Varro Premium 12" 350 Watt Powered Subwoofer with Auto-EQ

Elac DCB41-WN - Debut ConneX 4.5" Powered Speakers - Walnut, Pair and Elac PS500-BK - Varro Premium 15" 500 Watt Powered Subwoofer with Auto-EQ

VEVOR 8" 300W Underseat Car Subwoofer, Slim Powered Car Subwoofers Under the Seat, Low Profile Audio Sub Built-in Amplifier, Black