Amazon.com: BOSS Audio Systems CXX8 8 Inch Car Subwoofer - 600 Watts Maximum Power, Single 4 Ohm Voice Coil, Easy Mounting, Sold Individually : Electronics
Amazon.com: Massive Audio HIPPOXL122R – 12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 3000 Watt RMS, 6000w MAX Dual 2 Ohm, 4 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: H YANKA 12 Inch Subwoofer - 12 Inch Paper Cone Subwoofer Car Audio, Black Steel Basket, Dual Voice Coil 4 Ohm Impedance 12 subwoofer, 1600W MAX Power 12 inch Competition Subwoofer : Electronics
Amazon.com: JBL SUBBP12AM - 12” amplified 12” Subwoofer with Sub Level Control, Black : Electronics
Amazon.com: Harmony Audio HA-ML182 Monolith 18" Car Stereo Competition SPL Sub 3500W Dual 2 Ohm Subwoofer : Electronics
Amazon.com: BELVA BPKG212v2 1200W Dual 12" Car Subwoofer with Ported Enclosure, Monoblock Amplifier, Wiring Kit and Remote Bass Knob : Electronics
Amazon.com: BOSS Audio Systems BAB8 Amplified Car Subwoofer - 800 Watts Max Power, Low Profile, 8 Inch Subwoofer, Remote Subwoofer Control, Great for Vehicles That Need Bass But Have Limited Space : Electronics
Amazon.com: Echo Sub - Powerful subwoofer for your Echo - requires compatible Echo device : Amazon Devices & Accessories
Amazon.com: PyleUsa 10-Inch Low-Profile Amplified Subwoofer System - 900 Watt Compact Enclosed Active Underseat Car Audio Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs - PPLBX10A :