Frequency response：40Hz – 50kHz
Sensitivity：88 dB /1W
Impedence：>4 Ohm
Recommended Amplifier：50W
1 x Tweeter：Børresen planar ribbon tweeter
1 x Driver：Børresen bass/midrange driver: 4.5 inches
1 x Driver：Børresen bass driver: 4,5 inches
Dimensions（H x W x D）:110 x 30 x 55 cm