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  1. help selecting sub and amp

    System Design: Help Me Choose Equipment For My Car
    Hello,I need help selecting a sub and amp that would go good with this system and not over power it really would like to keep it all Alpine.The head unit I have is Alpine CDA-9813 I'm running theses speakers straight off the HU amp because its 60w x 4 Max and 27w x 4 RMS,front door Alpine...