Polk Audio AM3095-A Monitor30 Series II Two-Way Bookshelf Loudspeaker (Black) Pair by Polk Audio. Save 35 Off!. $130.00. BrandPolk AudioModelMonitor30 Series II SpecTypeBookshelf SpeakersSold AsPairDriver UnitsTweeter Complement: one 1&quot; cloth dome Driver Complement: one 5.25&quot; Bi-Laminate driverPower Rating20-100WFrequency Response55Hz-25kHzNominal Impedance8 OhmSensitivity89dbConnectorsInputs: Dual (bi-amp) 5 way binding posts FeaturesFeaturesCrossover: 2.3kHz second order high an...