1.Model: SM-401C
2.Rated Power:5W/10W/20W 8Ω
3.Speaker unit Size: 4"
4.Frequency Response: 90Hz-- 20KHz
5.Line voltage:100v/8Ω
6.Sensitivity (1w/1m): 90dB
7.Dimension: Φ245*175*160mm
8.Material: ABS
9.Weight: 1.6 kg