Diamond tweeter Solid body Tweeter-on-Top Continuum? cone FST Anti-Resonance plug Biomimetic Suspension Matrix? Aerofoil? cone bass units Flowport Description         3-way vented-box system Drive units : 1x ø25mm (1in) diamond dome high-frequency 1x ø150mm (6in) Continuum cone FST midrange 2x ø200mm (8in) Aerofoil cone bass units Frequency range       20Hz to 35kHz Frequency response          28Hz to 28kHz (+/-3dB from reference axis) Sensitivity          90dB (on axis at 2.83Vrms at 1m) Harmonic distortion : 2nd and 3rd harmonics (90dB,1m on axis) Nominal impedance       8? (minimum 3.0?) Recommended amplifier power        50W ? 500W into 8? on unclipped programme Max. recommended cable impedance     0.1? Dimensions : Height: 334mm Width: 847mm Depth: 371mm Net weight        32.20kg