Replacement 18″ Bass Driver. Spade Terminals. 600W RMSPower RMS: 600W Power Max: 1100W Impedance: 8 Ohm Frequency Response: 45Hz – 3kHz Sensitivity: 97dB Dimensions: 230 x 462mm Weight: 9.2Kg. Replacement 18″ bass speaker suitable for use as a replacement for faulty or damaged driver.. bass driver-speaker driver-speaker chassis