1 professional PA active speaker system 2. 8" active speaker 3. good quality with low price 4.OEM is accepted professional PA active speaker system  # Power: 30W-100W# Impedance :4 Ohm# Drive Unit : 2 tweeters and 8" woofer # Frequency Response: 50-20KHz# Sensitivity  : 93±3dB# Dimensions(LxWxH) :     670x340x635 (mm) # Gross Weight :21kg# 20Ft : 190 Sets# 40HQ :466 Sets 

8" professional PA active speaker system