Nominal Impedance: 4 ohmPower Handling: 120WMax. Transient Power Handling: 280WSensitivity (2.83V/1M): 90dBFrequency Response: 40-22000HzCrossover Point: 3800Hz 6dB/octaveVoice Coil Diameter, Woofer: 25mm (1.00"), Tweeter: 28mm (1.10")Voice Coil Wire: Woofer: Copper, Tweeter: CopperMounting Depth: Woofer62mm (2.44"), Tweeter: 20mm (0.80")Magnet System: Woofer: T-type high-grade ferrite, Tweeter: Neodymium