These speakers are in almost perfect shape.Drive Units: 305 mm (12 in) acoustic suspension woofer, 38 mm (1 1/2 in) midrange hemispherical dome, 199 mm (3/4 in) high-frequency hemispherical dome.Crossover: 575 Hz, 5000 HzImpedance: 4 ohms nominalControls: Midrange and high-frequency driver level controlsAmplifier: Up to 100 watts per channelSize: 356 x 636 x 289 mm deep ( 14 x 25 x 11 3/8 in)Weight: 24 kg (53 lb)Woofer resonance: Free air 18 Hz, in enclosure 42 HzVolume ofenclosure: 48.2 litres (1.7 cu ft)

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