Technical Specifications Description 3-way vented-box system Technical features Decoupled Carbon Dome™ tweeter Continuum™ cone FST™ midrange Decoupled midrange Aerofoil™ Profile bass cones Flowport™ Drive units 1x ø25mm (1 in) Decoupled Carbon Dome high-frequency 1x ø100mm (4 in) Continuum cone FST midrange 2x ø165mm (6.5 in) Aerofoil Profile bass Frequency range (-6dB) -6dB at 45Hz and 33kHz Frequency Response -3dB 50Hz - 28kHz ±3dB Sensitivity 89dB spl (2.83VRMS, 1m) Harmonic distortion 2nd and 3rd harmonics (90dB, 1m) <1% 90Hz - 22kHz <0.5% 120Hz - 20kHz Nominal impedance 8Ω (minimum 3Ω) Recommended amplifier 30W - 200W into 8Ω on unclipped power programme Dimensions Height: 225mm (8.6 in) Width: 590mm (23.2 in) Depth: 285mm (11.2 in) cabinet only 301mm (11.9 in) including grille and terminals Net weight 18.3kg (39.7 lb) Finishes Cabinet: Rosenut Gloss Black Satin White Grille: Black Grey (Satin White only)