Morel Tempo Ultra 602 6-1/2" component speaker system Power Handling: 120W | Max Transient Power: 250W | Nominal Impedance: 4-ohm Sensitivity (2.83V/1M): 90 dB | Frequency Response: 55-22,000Hz | Crossover Point: 2,800 Hz Voice Coil Diameter: Woofer: 38mm (1.5") | Tweeter: 28mm (1.125") Voice Coil Wire: Woofer: Copper | Tweeter:Copper Mounting Depth: Woofer: 65mm (2.56") | Tweeter: 20mm (0.80")