Like the man said you get what you pay for... If you buy cheap then don't try to turn up the power and not expect to hear distortion... I purchased Alpine X series 17REF components for both the front and rear doors. They will handle 225 watts each with no distortion. They're not cheap but they do give to listener a great sound... It's a personal choice...

 

I don't know anything about component systems, do they require an amp? I'm gonna replace my internals as well cuz the stock sound is WEAK