Specification :

Nominal diameter 258/10 mm/inch
Rated impedance 4 ohm
Program power 180 watts
Rated power 120 watts
Sensitivity 89 dB
Frequency range 30~1500 Hz
Effective piston diameter 210/8.27 mm/inch
Minimum impedance 4.2 ohm
Voice coil diameter 51.5/2.0 mm/inch
Voice coil material copper
Voice coil winding depth 17/0.67 mm/inch
The number of layers 4
Kind of layer Outside 4 layers
Top plate thickness 8/0.32 mm/inch
Cone material paper
Cone design straight
Frame material Fe