STS 600 6 1/2-Inch Two-Way Mini Tower Speaker (400-4066) Specifications Faxback Doc. # 32968 Speaker Complement: ........Woofer: 6 1/2-Inch Vacuum-Formed Polypropylene Tweeter: 3/4-Inch Urethane-Treated Cloth Dome. Impedance: ...............................................8 Ohms (Nominal) Frequency Response: ..........................................55 Hz-20 kHz Power Handling (RMS): ............................................75 Watts Maximum Power: ..................................................150 Watts Sensitivity: ........................................................89 dB Dimensions (H x W x D, without grille): ....28 1/2 x 8 1/2 x 10 1/2 Inches (728 x 216 x 267 mm) Shipping Weight: .......................................20.5 lbs (9.29 kg) (BR/EB 5/6/96)