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Oakton 4” (102 mm) Kevlar Cone, Mid-Range Speaker
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4" inch 4Ohm 6Ohm 8Ohm 30W Hifi Audio Speaker Woofer Subwoofer Bass Loudspeaker | eBay
4" (102 mm) 8 Ohm, Mid-Bass Woofer
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TL3001A-4 Professional Speaker 12 Inch 325 Watt RMS Woofer 4 Ohm With and SPL of 91 dB | Mavin the Webstore
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