Boomer Speaker Speaker HP Visaton Woofer 150 Watts Max 8 Ohm 25 cm (10) : Amazon.de: Electronics & Photo
Amazon.it: woofer 25 cm
4 Inch Round woofer HiFi Stereo Jamma Speaker 30W RMS 8 ohm, by RetroArcade.us - Walmart.com
1 PC Sounderlink Audio Labs 4'' 50W subwoofer woofer bass raw speaker driver 4 Ohm 8Ohm for DIY home theater monitor audio - Sounderlink professional pro drivers and speakers
Visaton W 250 8 Ohm 10 inch 25.4 cm Subwoofer 90 W 8 Ω | Conrad.com