Specifications for the KEF Q-4 Speakers
Design - 3 way bass reflex
Drive Units:
LF: 130 mm (5¼") woofer
MF: 130 mm (5¼") UNI-Q® with
HF:19 mm (¾") aluminium dome
Frequency Response at 15°
horizontally off axis ±3 dB - 42 Hz - 27 kHz
Crossover Frequency - 250 Hz - 2.8kHz
Amplifier Requirements - 15 - 150 W
Sensitivity (2.83V/1m) - 90 dB
Maximum Output (SPL) - 111 dB
Impedance - 8Ω
Dimensions:
180mm Width
855mm Height
275mm Depth
Weight: 9.9 kg
Perfect working order , excellent condition.