Sensitivity (SPL) 90dB (2.83 Vrms input) Frequency Response 60Hz - 20kHz (+/- 2dB Impedance 4 Ohms Drivers 1 x 6.5” (165mm) woofer. Speaker Dimensions (H x W x D) 75 x ø 240mm (3 x ø 9.4”) Weight 1.1kg (2.4lbs) Previous Painting the speaker grille and frame