Ground Zero GZRB30SPL 30cm SPL Subwoofer in the Case - Passive Bass Reflex Front Subwoofer, Wooden Case, Load 1350W RMS 2 x 2 Ohm : Amazon.com.be: Everything Else
1pc 12 Inch 30cm Car Audio Stereo Speaker Subwoofer 4 Ohm 2500W Super Power Auto Red Louderspeakers Bass
Kicker Q-Class Bundle - A 42CWQ124 12" CompQ Subwoofer With 42IQ5001 500 Watt Amplifier & Wiring Kit - Walmart.com
JBL S2-1224SS Subwoofer Auto Set - 1100 Watt Harman Kardon Car hifi 12" JBL Radio Bassreflex Gehäuse Auto Subwoofer - 30 cm | 300 mm, Schwarz : Amazon.de: Elektronik & Foto
GROUND ZERO GZNW 12Xmax 30 cm / 12″ high power SPL subwoofer