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TB-W3-2141 full frequency 3-inch speaker, efficiency 1W/1m: 87 dB, bandwidth: 75-20K Hz, natural resonance point: 75 Hz - AliExpress
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Tang Band Speaker 25-2234SD High-Resolution 1-Inch Aluminum and Magnesium Dome Tweeter | audioXpress
Tang Band Speakers Fan-Page - Tang Band not only develops great speaker drivers but also great complete speaker kits. Tang Band knows about great housings. Classic two way, vented! | Facebook
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