The Polk CSiA6 Center Speaker gives an impressive audio response across a wide audio frequency range of 45 Hz to 27,000 Hz, bringing theater-quality sound performance into your living room. Sensitive to 90 dB, the Polk center speaker sits neatly underneath your TV, PC, or audio player, and has a compact size and profile to ensure easy storage in any home. The acoustically inert cabinet is built from MDF, designed to reduce audio resonance while providing a sleek, solid facade. The real wood veneer encases dual 6 1/2-inch polymer composite woofers, coupled with a 1-inch silk/polymer tweeter, so you can pick out both top and bottom end clarity across the entire sound spectrum with this speaker.