Very neat Dali TRIO AW10 subwoofer in combination with Avalanche Multistone 3 top speakers (satellites speakers) offered The set still looks very neat and is as good as scratch free. The speakers from Avalanche come from Finland and are made of soapstone. The speakers only produce middle and high frequencies, hence the combination with the subwoofer. The specifications of the Dali Trio AW10 subwoofer: Product Series AW Speaker Type Subwoofer Design Principle Active (Built-in Amplifier and Crossover) Bass reflex Bass Driver 10" Air Dried Paper Cone Amplifier [W RMS] 60.0 Input Impedance [Ω] 47.0 Inputs Stereo Speaker Level Stereo Line Level Input RCA Phono Mono Line Level Input RCA Phono (unfiltered) Controls Volume Level Low-pass Crossover Frequency (35-150 Hz) Polarity (0˚/180˚) Frequency Range 38 - 150 Hz Max. SPL 109 dB Power Consumption: 230 VAC 50.0 - 60.0 Hz Max 100 W Dimensions [mm] 380 x 326 x 414 Weight: 15.8 kg Finish Black Ash.