Design  Three-way bass reflex 
Drive units 

Uni-Q driver array: 
HF: 25mm (1") vented aluminium dome
MF: 125mm (5") aluminium
Bass units: LF: 2 x 165mm (6.5") aluminium 
Frequency range (-6dB)  37Hz~45kHz 
Frequency response (±3dB)  42Hz~28kHz 
Crossover frequency  50GHz. 2.9kHz 
Amplifier nequinements  25W~200W 
Sensitivity (2.83V/1m)  89dB
Harmonic distortion
2nd & 3rd harmonics (90dB, 1m)		 <0.4% 100Hz-20kHz 
Maximum output  113dB 
Nominal impedance  8Ω (min. 3.2Ω) 
Weight  25.9kg (57lbs.) 
Dimension (H x W x D) (with grille and terminal) 1070 x 210 x 345mm (42.1 x 8.3 x 13.6in.)
Dimension (H x W x D) (with grille, terminal & plinth) 1121 x 329 x 368mm (44.1 x 13.0 x 14.5in.)