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Just picked up these bad boys for really really cheap, but have no idea what they are so I can't find an RMS rating, they are older probably around 2000-2010 : r/CarAV
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Subwoofer - Wikipedia
Amazon.com: 5 CORE 12" inch Full Range Subwoofer Car Audio Dual Cone Speakers Give High Powered Sound Quality, 23 oz Heavy Bass Premium DJ Subs RMS 75W Peak 1200W, 8 Ohms Woofer