31303 – 6 1/2’’ 2-Way Speaker Set 100W – Impedance: 4 Ohm – Sensitivity 90db – Frequency Response: 60-18000 Hz – Max: 100W (per pair) – RMS Power: 80W (per pair) – Material: UV-stabilised ABS plastic – Dimensions: 6,5’’ (165mm) Mounting Dimensions Depth: 64mm, Hole: 136mm Magnet: 411g (8oz + 6.