A range of chassis speakers to replace the main driver in the QTX Sound QS series speakers.Impedance[tab]8 OhmsPower max.[tab]700W[br]Power rms[tab]350W[br]Magnet size[tab]156 x 20mm[br]Diameter[tab]38cm (15")[br]Frequency response[tab]42Hz - 5kHz[br]Magnet weight[tab]1.4kg (50oz)[br]SPL @ 1W/1m[tab]101dB[br]Voice coil[tab]62mm (2.5")[br]Dimensions[tab]151mm x 385mmØ[br]Weight[tab]4.52kg