Specs Scheme : 2 ways, 2 loudspeaker bass-reflex scheme, and a bookshelf type Woofer : 20 cm (116A) Tweeter : 3.6 cm (LE26) Allowable input : 35 W (succession special NetWare program) Impedance : 8 ohms Cross over frequency : 2500 Hz Output sound pressure level : 87 dB (new Japanese Industrial Standard) Dimensions (WxHxD) : 330 x 533 x 251 mm Weight : 13 kg (at the time of an original packaging)