2 unit 2 frequency division and phase inversion;
1 ″ silk film ball top tweeter unit, 6.5 ″ double voice band rubber edge polypropylene mid bass unit;

Rated power: 60W;
Nominal impedance: 4 Ω / 16 Ω optional;
Constant pressure input: 50W / 30W / 15W @ 100V;
Sensitivity: 91dB;
Maximum sound pressure level: 109dB;
Frequency response range: 55Hz ~ 20kHz;
Directional characteristic (- 6dB): 90 ° h × 90 ° V 
Outer circle size: 250 mm
Opening size (Reference): 219mm
Diameter × depth: Φ 250 mm × 165mm
Net weight: 3.3kg