so i ordered my amp today and i was wondering if i was going to need an extra battery or would the yellow top in my car be enough..and will i need a HO alternator?? i have 2 12" L7's and i ordered a rf x7 a few minutes ago. 399 shipped .its rated at 1500rms at 2ohms but its under rated so its a little above 1600rms if i remember correctly..i just need to kno if im going to need to save more money for another alt. or an extra battery..money doesnt come easy my way lol..im in food service distrobution..aka i work at wendys lol