product description:

KV-818 speaker: for karaoke singing use, the use of dual 8 "subwoofer unit, low frequency strong and powerful, frequent frequency vivid, cordial.
Rich and vigorous vocal effects, treble clear and transparent, sweet sound. (Horn appearance patent number: 200630056320.5)
Technical parameters:

System ···2 ways 4 speakers
Speaker ··· 20cm bass x2 ，7.7cm treble x2
Sensitivity (1w / 1m) ··· 89bB
Max input power ··· 230W
Frequency response ··· 50 - 20kHz
Impedance···8Ω
Weight ···14.5 kg per piece