>> Specification
- Frequency Response (-10dB) : 50 - 20000 Hz 
- Sensitivity 1W/1m : 91 dB 
- Outdoor : No 
- Transformer : Yes 
- Transformer Taps (Transformer Version Only) : (1.88 - 70 V only), 3.75, 7.5, 15, 30 
- Chassis Size : 8 inches 
- Speaker Type : Ceiling Speakers
- Weight Net : 5 kg ( 11.02 lbs )
- Dimensions (Height X Max Diameter) : 178 x 270 mm (7.01 x 10.63)