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Amazon.com: DS18 PRO-BX21N.1 Car Subwoofer Audio Speaker - 21" in Neodymium Magnet, 6" Voice Coil, 1 Ohm Impedance, 3000W Rms Power, 6000W Max Power - Reinforced Paper Cone for Outstanding Performance : Electronics
MPE - Woofer altoparlante 21 cm 8 pollici 4 ohm 150 watt rms mod: W210DJ : Amazon.it: Strumenti Musicali
Amazon.com: Sound Town 21” 1000W Cast Aluminum Frame Woofer (Low Frequency Driver), Replacement Woofer for PA/DJ Subwoofer Cabinets (STLF-21500A) : Musical Instruments
Amazon.com: CES 3.5" GM Replacement Full Range Speaker 8 OHMS @ 10 WATTS : Electronics
Amazon.com: Facmogu 2PCS 6.5 Inch Audiophile Full Range Speakers, RMS 30W MAX 50W 4 Ohm, HiFi Full Range Car Audio Speaker Drivers, Wideband Stereo Audio Loudspeaker Replacement - Yellow : Electronics
Amazon.com: CT Sounds STRATO-8-D4 1200 Watts Max 8 Inch Car Subwoofer Dual 4 Ohm : Electronics
Amazon.com: Harmony HA-P12WS8 Replacement 12" PA Speaker 8 Ohm Woofer Compatible with EV ELX112P : Musical Instruments