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70V/100V Passive Ceiling Speakers 6inch In Ceiling Loudspeaker Stereo Sound Audio System Recessed Music PA Speaker for Bedroom - AliExpress
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Amazon.com: OSD Black 6.5" Architectural Shallow Mount 70V/100V/8-Ohm in-Ceiling Speaker w/Back Can, Single - BK-R62TSM : Electronics
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Amazon.com: Sound Town 6-Zone 70V/100V Commercial Amplifier and 6 Wall-Mount 5” Installation Speaker System, for Restaurants, Bars, Cafes, Schools, Churches, Black* * : Musical Instruments
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