Amazon.com: Rockville PBG18 18" Passive 2000 Watt 8 Ohm Pro Audio Subwoofer Sub/MDF Cabinet, Black : Musical Instruments
OMNITRONIC MAXX-1810DSP 2.1 Active System, Powerful Active PA System with DSP, Bluetooth, 800 Watts (18 Inch Sub, 10 Inch Tops) : Amazon.de: Musical Instruments & DJ
OMNITRONIC PAS-212 II 2-Wege Top, 12 Zoll | music store
Amazon.com: Seismic Audio - 18" Raw Subwoofers/Woofers/Speakers - PA DJ Pro Audio Replacement Sub - 750 Watts RMS - 240 oz Magnet - 8 Ohms - 4" Voice Coil : Musical Instruments
OMNITRONIC PAS-1500ND Subwoofer 15 Zoll | music store