A range of chassis speakers to replace the main driver in the QTX Sound QR series active cabinets.Impedance[tab]4 ohmsPower max.[tab]150W[br]Power rms[tab]100W[br]Magnet weight[tab]567g (20oz)[br]Magnet size[tab]18 x 100mmØ[br]Diameter[tab]20cm (8")[br]Voice coil[tab]35mm (1.35")[br]Frequency response[tab]55Hz - 8kHz[br]SPL @ 1W/1m[tab]93dB[br]Dimensions[tab]87 x 210mmØ[br]Weight[tab]1.35kg