Hifonics THW12D4 Zeus Theta 1000W Max 500W RMS 12 Inch Car Audio Subwoofer - Walmart.com
HIFONICS HFX12D4 12" 800 Watt 4 Ohm DVC Car Audio Subwoofer Power Bass Sub - Walmart.com
HIFONICS 12 in. 800-Watt 4-Ohm DVC Car Audio Subwoofer Power Bass Sub (8-Pack) 8 x HFX12D4 - The Home Depot
Hifonics Monoblock Car Amplifier – Gemini Series Class D Amplifier 1500 Watt, Car Electronics Audio Subwoofer Bass Boost 1 Ohm Stable MOSFET Power Supply for Car Speakers Mono Sub Amp : Electronics - Amazon.com