Ideal sound source for acoustics experiments in the frequency range 60 Hz to 23 kHz. Includes connecting lead with 4 mm safety plugs. Frequency range: 60 Hz to 23 kHz (-10 dB) Power capacity: 100 W (as per IEC 268-5) Impedance: 4 Ohm Tweeter: ½" diam. Woofer: 5 ½" diam. Dimensions: 225 x 150 x 142 mm³ Weight: 1.8 kg