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PHASETECH, Black, 100 W Max., Speaker - 443C14|V52 - Grainger
Used Hartke VLF 1008 100 Watt 8 Ohm 10 Inch Woofer
NEW 4" inch Super Mini Woofer Speaker Driver 4 ohm 100 watts | eBay
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Amazon.com: PRV AUDIO 6MB200 v2 6.5 Inch Speakers Midbass Woofer 8 Ohm, 100 Watts RMS, 200 Watts Program Power, 93.5 dB 1.5 in Voice Coil for Small Custom Enclosures Pro Car Audio System (Single) : Musical Instruments