I have a Kenwood Excelon KDC-X491 head unit. Pioneer Premier TS-A643P speakers for the doors. They are 6 ½ inch 4 ohm 50 watt rms 280 watt max. Rear speakers are 6 x 9 Alpine 4 ohm SPG-69C2 75 watt rms 300 watt max. I’m looking for a decent amp to run these. Nothing earth shattering. I’m not into competitions or anything like that. Already got subs for bass so I’m not worried about bass. Just want nice clean sound without having to worry about drawing to much power and having alternator problems ( 2000 Honda civic) I have my choices narrowed down to a Soundstream Rubicon RUB 4.600 or Hifonics HFi100.4 or something slightly smaller in power such as the MB Quart DSC 480. Of the three, which would you say would be the best quality? There all within my price range and right now I am leaning towards the Soundstream. Please help me decide!!