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Polk FXi A4 Dipole Bipole Surround Speakers, Pair
Two 1-inch silk/polymer dome tweeters aimed 45 degrees apart and a 5.25-inch Dynamic Balance woofer in a triangular, side-ported cabinet, with a switch that moves them between dipole and bipole. 88 dB, 8 ohms, 20 to 150 watts, keyhole-slotted for wall mounting. Voice-matched to Polk's RTi and CSi models. Good working condition, fully tested.