Design Two-way Closed Box 
Drive units 130mm (5.25") aluminium Uni-Q
25mm (1") vented aluminium dome HF 
Frequency range free field (-6dB) 96Hz-19.5kHz 
Frequency response (±3dB) 105Hz-18.5kHz 
Crossover frequency 2.5kHz
Amplifier requirements 10-100W 
Sensitivity (2.83V/1m) 86dB 
Maximum output 106dB
Nominal impedance 8Ω (min.4.6Ω) 
Weight 4.25kg (9.4lbs) 
Dimensions (H x W x D) 174 x 180 x 259mm
Dimension (H x W x D) with rubber feet 178 x 180 x 259mm
Colour Black/White