Polk Reserve R200 Bookshelf Speakers (Pair)

1″ ring radiator Pinnacle tweeter with an integrated waveguide for a broad “sweet spot”. 6-1/2″ Turbine Cone™ midrange/bass driver. Frequency response: 51-38,000 Hz. Nominal impedance: 8 ohms. Sensitivity: 86 Db. Recommended amplifier power: 30-200 watts. High-current amplification from a quality power amp or integrated amp is recommended for best performance. Bass-reflex (ported) enclosure with rear-firing X-Port. Reduces low-frequency distortion and increases bass output. Binding post speaker terminals. Removable magnetic grilles.