Polk RT25i speakers (pair)

Audio specifications Driver Complement: One 1" (2.54 cm) trilaminate polymer-dome tweeter One 5.25" (13.34 cm) mineral-loaded composite-cone woofer Frequency Response: 60Hz–25kHz (-3dB) Nominal Impedance: 8 ohms Sensitivity: 89 dB Recommended Amplifier Power: 20–100 watts per channel Connectivity and design Connectivity: 5-way gold-plated binding posts Enclosure: Bass-reflex Cabinet Resonance Control: Features two front-firing ports to minimize cabinet resonance Driver Technology: Drivers are shielded for home-theater use Woofer uses Dynamic Balance technology to minimize resonances Cabinet: Some versions have a real wood veneer finish Dimensions and weight Dimensions (H x W x D): 11 1/8" x 6 5/8" x 10 3/8" (28.3 x 16.8 x 26.3 cm) Weight: 28 lbs per pair (12.7 kg)