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
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
Hifonics Hifonics TSA300R Aktivsubwoofer 30cm mit Digital-Endstufe Auto- Subwoofer (300 W, Hifonics TSA300R Aktivsubwoofer 30cm mit Digital-Endstufe)
Caliber BC112SA Subwoofer 30 cm with Double Coil Black : Amazon.com.be: Electronics
JBL Stage 122D - Subwoofer Auto - 1000 Watt Harman Kardon Car HiFi Soundsystem Bass Box mit Dual 4-OHM Spule - 30 cm | 12 Zoll Bassbox, Black : Amazon.de: Elektronik & Foto
5 Inch Car Audio Speaker I Key Buy 12v 220v Max 100watts Hifi Bluetooth Active Motor Auto Van Boom Box Loudspeakers Subwoofer - Subwoofers - AliExpress