Specs Design : 2-driver, 2-way bass reflex; bookshelf / stand-mounted High Frequency Driver : 19 mm polymide dome with ferro-fluid cooling Mid/Bass Frequency Driver : 165 mm, diecast chasis, polypropylene cone, Apical former Crossover : 2nd order electro/acoustic at 3.0kHz Frequency Response On-Axis : +/-2dB from 75 Hz - 20kHz Frequency Response 30 degree Off-Axis : +/- 2dB from 75 Hz - 15 kHz Low Frequency Extension : 55 Hz (DIN) Sensitivity Room / Anechoic : 90 dB / 87 dB Impedance : Compatible with 8 ohms Suitable Amplifier Power Range : 15 - 100 watts Maximum Input Power : 60 watts Finishes : Light Cherry Weight : 11 kg Dimensions (HxWxD) : 33.0 x 19.7 x 24.8 cm