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Amazon.com: Polk Audio Signature Series S55 Floor Standing Speaker – (2) 6.5” Drivers, Stylish Looks, Big Sound, Bi-Wire & Bi-Amp, Detachable Magnetic Grille (Discontinued by Manufacturer) : Electronics
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Amazon.com: Polk Audio 90-RT 3-Way In-Ceiling-Speaker - The Vanishing Series | Perfect for Mains, Rear or Side-Surrounds | Paintable Wafer-Thin Sheer-Grille | Dual Band-Pass Bass Ports - Low Frequencies,White : Electronics
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