Rated Impedance: 8 Ω 
Rated Power: 40 W
Max. Power: 80 W
Sensitivity: 108 dB ± 3dB , 1W/1M 
Frequency Range: 380 Hz ~ 3KHz  -10dB / ±20% Hz
Whistling: 75 Volts
Driver: Built in Transformer (40-20-10-5W /100V)
Horn: ASA PW-957 ( Acrylate copolymer ) UV Resistant, Stainless steel #304/#316
Dimension: 332^Фx 443^D mm
Weight: BL-40T: 2.8 kgs / TH-120P: 2.8 kgs