S/W-88 Woofer Ricambio Universale 8" Pollici 20/21 Cm 8 Ohm 150/200W Max 80 RMS | eBay
150W 8OHM 8'' INCH HIGH PERFORMANCE LOUDSPEAKER 21CM DS-W8 DAEWOO
Triangle Thetis 280 Active Subwoofer 150 W White – Tieftöner (Active Subwoofer, 150 W, 35 – 120 Hz, 400 W, 21 cm, 21 cm (8.25)) : Amazon.de: Electronics & Photo
FOCAL Utopia Be 21WX 21cm Subwoofer | Sub Woofer Speakers | Croooober
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1200W Car Subwoofer Strong Car Speaker 10 Inch Subwoofer Built in Amplifier - China 10 Inch Car Subwoofer, 12 Volt Speaker Subwoofers | Made-in-China.com