Features:
21" Loudspeaker
Nominal Diameter 53cm (21")
Power rating 1000 Watts
Frequency range 30 - 1000 Hz
Nominal Impedance 8 Ohms
Sensitivity (1 W 1 M) 99 dB
Highest Recommended Crossover 300 Hz
Resonance 22 Hz
Enc. Vol. Recommended 130 to 350 Litres
Effective Piston Diameter 455 mm (18.2”)
Displacement limit 38 mm (1.5”)
Voice coil diameter 152 mm (6.08”)
Voice coil Copper
Voice coil winding depth 30 mm (1.2”)
Heavy duty 21" cast aluminium frame with extra wide flange for increased rigidity, 1000WRMS, 6” copper voice coil assembly