18 inch powered subwoofer

BOSS AUDIO Phantom P106DVC 10" 4200W DVC Car Subwoofers Power Subs PAIR

Cerwin-Vega H6TE12SV HED Series 12" Powered Subwoofer Vented Enclosure

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

Monoprice CSW-10: 10" 200-Watt Compact Subwoofer, High-Level Speaker Inputs, Crossover Setting, RCA Inputs

Kicker 48TCWRT82 CompRT 8" subwoofer in thin profile enclosure, 2ohm

Kicker 48CDF104 Comp 10" Subwoofer in Down Firing enclosure, 4-Ohm

Kicker 46L7T122 L7T L7-Thin 12-Inch (30cm) Subwoofer, Dual Voice Coil, 2-Ohm, 600 Watt

Kicker 48CWR152 CompR 15" Subwoofer, DVC, 2-ohm

Kicker 43VC124 Comp 12-inch Subwoofer in Ported Enclosure, 4-Ohm

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

Monoprice Alpha 2-Way Ceiling Speakers - 6.5 Inch (Pair) Carbon Fiber, Paintable Magnetic Grille, Louder with Less Power

Monoprice SRD212 Powered Speaker 12in, with Class D Amp, Built-in Digital Sound Processor DSP, and Bluetooth Streaming, Portable and Lightweight -

Kicker 48TRTP102 Down-Firing 10" CompRT 2-Ohm Subwoofer Enclosure

2) Boss CH10DVC 10" 3000W Car Subwoofers Audio DVC Power Subs Woofers 4 Ohm

Kicker 44L7S152 Solobaric L7 15" Subwoofers Bundle - Dual 2-Ohm Voice Coils for wiring to a 2-ohm monoblock amplifier

Pyle PLMRWB50L Waterproof Marine Wakeboard Tower Speakers with Built-in LED Lights, 5.25" Subwoofers, Stainless Steel Housing – 200W Max, Pair

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

MB Quart MBQJL-302 400W Jeep JL Tailgate Powered Subwoofer Box with Amp and Bass

ELAC DS103-BK 10" Debut 3.0 Powered Subwoofer – 200W Peak Class D, Sealed Cabinet, 31Hz Low-Frequency Extension, LFE & High-Level Inputs – Black Ash

Kicker 49L7X151 - SoloX L7X 15-Inch (38cm), 3" Coil, Ferrite Competition Subwoofer, 1-Ohm

Kenwood P-XW1221SHP Single 12" High Power Subwoofer in a Vented Enclosure and includes a X503-1 1000W Max Power eXcelon Series Class D Mono Amplifier

Kicker 49L7X181 SoloX L7X 18-Inch (48cm), Ferrite Competition Subwoofer, 1-Ohm DVC

Elac - Two DF63-BK - Debut 3.0 6.5" Floor Speaker - Black and Elac PS250-BK - Varro Premium 10" 250 Watt Powered Subwoofer with Auto-EQ