Features & specifications: Tweeter - 1" × 1.4" Folded Motion Transducer with 5.25" × 1.75" diaphragm Mid Bass driver - 4" poly cone with stamped steel basket. Sensitivity 90 dB Impedance 6 ohms Recommended amplifier power: 20-150 watts Frequency response 70-23,000 Hz (±3dB) Finishes: Piano Black Dimensions: 12.6" H × 5.6" W × 5.7" D Weight: 6 lbs. ea