Polk Audio TSi300 Floorstanding Tower Speaker - Pair (Cherry) This is for a PAIR of Polk Audio TSi300 Floorstanding Speakers (Cherry) Single versatile high-performance floorstanding loudspeaker Equipped with 1-inch silk/polymer composite Dynamic Balance dome tweeter Equipped with two 5.25-inch diameter bi-laminate organic fiber cone woofers Recommended Amplification: 20-150 watts/channel Frequency response: 35-25KHz