Recommended Amplifier Power: 60 – 200 Watt Impedance: 6Ω Sensitivity: 88 dB Frequency Response: 34Hz – 65kHz (-10 dB) Tweeter: 3cm (1-1/4″) dome type Woofer: 1 x 8 cm (3-1/4″) dome type (MidRange), 2 x 16cm (6-1/2″) cone type (Bass) Bass Reflex: Yes Dimensions (HxWxD): 1134 x 330 x 459 mm Weight: 32.8 kg Warranty: 24 Months (+36 months after registration)