High quality with suitable price car amplifiers. Nice appearance&easy to use car amplifiers. Passed CE,FCC,ROHS car amplifie *Four sound channel output car amplifiers*Outpower:RMS 35*4(4Ohm),80W*4 (4 Ohm Bridged)*S/N Ration:90dB*Technical parameter:Total harmonic distortion:<0.1% *Frequency Response:20Hz-20KHz ,distortion:<0.09(1KHz) *Supply voltage:10-15V DC*Weight:2.6Kg per pcs*Matched 2 fuses ...