Technial Parameter 
LF Unit: 1x8＂coaxial speaker
Power: 50W (RMS) 80W (PEAK)
Frequency Response: 60Hz-20KHz (-3dB)
Sensitivity: 90dB / 1W / 1M
Max. SPL: 112dB (RMS) 118dB (PEAK)
Nominal Impedance: 8Ω
Transformer constant pressure power: 15W / 30W / 60W @ 100V
DC Impedance: 6.4Ω ± 15%
Quality control range: ± 2dB (<1KHz)
Anti-magnetic effect test: no anti-magnetic
Earthquake drop test: 1 meter height drop, no damage
Connector: Speaker Spiral Terminal
Box material: iron material and plastic combination
Weight: 3.9Kg
Size: (W * D * H) 280x280x190mm