Dont go for chinese AMP,,
Ur priority must be ,, 1 > HU,,,2> Speakers ...3> Good amp (not chinese) n last Sub.
Kenwood speakers if Original are good but a chinese amp will eat up whole clarity n sound separation n it will only yeild DHUUZ DHUUZ n nothing else.,.,.,.'
Buy a Kenwood Sub in 4-5K but spend 8-12K on good Amp.,.,