Amazon.com: JBL Professional Control 26CT 6.5-Inch Ceiling Loudspeaker Transducer Assemblies, With Transformer Taps, Sold as Pair, White : Everything Else
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PYLE PDICS8 - 8.0'' Inch In-Wall / Ceiling Speaker with 100V Transformer Tap (for Commercial PA Intercom System) (200 Watt) - Walmart.com
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