6'' loudspeaker made of metal for 70 / 100V lines, Low loss transformer 6W, 3W @ 100V and 3W, 1,5W @ 70V. Frequency response: 100-20000Hz +/- 10dB, Sensitivity: 92 dB (1W 1m), Dimensions in mm (Diameter x depth) 200 x 65 mm. Color: RAL 9016.