Genelec Speaker 4020C RAW 230VRecycled aluminium cabinet with tightly controlled directivity and minimum diffraction for excellent performance. Both drivers have metal protection grilles, with 105 mm (4 in) LF and 19 mm (3 4 in) HF transducers. Euroblock screw terminal for balanced input signal. Integrated crossover and Class D amplifiers 50 W + 50 W. Max. SPL 100 dB, frequency response 56 Hz 25 kHz ( 6 dB). Universal mains voltage and switching amplifiers for low power