I need a 4 channel amp for my setup, preferably 100x4 rms or better, i see some hifonics amps on ebay for around 200 which would meet my demand. Are they good quality for a high's amp, since i will be running just speakers off this amp, Subs have their own.

and which 6.5 components around 300 are a good choice to match with my 6x9 infinity in my rear deck.

 

they are good amps.