A range of chassis speakers to replace the main driver in the QTX Sound QR series active cabinets.Impedance[tab]4 ohmsPower max.[tab]400W[br]Power rms[tab]200W[br]Magnet weight[tab]1.134kg (40oz)[br]Magnet size[tab]20 x 140mmØ[br]Diameter[tab]30cm (12")[br]Voice coil[tab]52mm (2")[br]Frequency response[tab]45Hz - 6kHz[br]SPL @ 1W/1m[tab]98dB[br]Dimensions[tab]129 x 307mmØ[br]Weight[tab]4.02kg