Polk TSx330T High Performance Floorstanding Loudspeaker Size is definitely not a measure of performance with the TSx 330T Floorstanding Loudspeaker. For your small or midsized room, for your demanding entertainment taste, the TSx330T delivers Polk performance. TSx Series bi-laminate driver cones, tuned perfectly with our Dynamic Balance process, produce smooth, natural sound. All TSx loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems. Stiff and durable Dynamic Balance composite driver cones deliver smooth, natural sound. Silk/polymer dome tweeters anchor the action with clear and detailed highs, even at high volumes. The high efficiency design of the TSx Series works well with practically any electronics. TSx loudspeakers are timbre-matched within their series for seamless speaker-to-speaker blending. A 3-inch critically tuned port minimizes port noise and smooths port air flow for full-bodied bass. Curved enclosure in non-resonant MDF for an acoustically inert cabinet reduces audible coloration. Technical Specifications 1 - 1” (2.54 cm) silk/polymer Dynamic Balance dome tweeter2 - 6 1/2” (16.51cm) Dynamic Balance bi-laminate cone mid-wooferTotal Frequency Response - 33Hz-25kHzUpper -3dB limit - 24 kHzLower -3dB limit - 45 HzNominal Impedance - 8 OhmsEfficiency - 90 dBRecommended Amplifier Power - 20-150 Watts per channelGold-plated 5-way binding postsDimensions - 37” (93.98cm) H X 8” (20.32cm) W X 12” (30.48cm) D