How can I power 4 speakers with a 2-channel amp?

Help! Car stereo for DUMMY (ME) - 4 speakers @ 2-60w rms, but WHAT AMP POWER RMS?

• I need an amp, because my speakers sound like crap in the highs and lows at high volume. Otherwise, they rock. Listen, I have these speakers: http://www.crutchfield.com/p_108612I/Infinity-Reference-Series-6-1-2-Speakers.html?tp=95 Two 6x9's, and two 6 1/2". I also have some pioneer door tweeters I can't believe I found their information through "Google", but I finally did. It took me a YEAR to find that link to the Infinity Reference 612i's. Ok, so I need suggestions. Bass isn't enough, highs are screechy at high volumes (they CAN sound better I bet you) 4 channel amp? What Max wattage amp should I get? Rms? I was thinking of trying to find a 250 Watts RMS Amp (500 watts peak), because of the speaker rating of 2 - 60w rms (240 watts rms total) I'll place the amp behind my dash, plug in 2 rca's..... and wire up all 4 speakers RIGHT? I am fuzzy there. Please DO NOT complicate your answer, but do be specific. Very specific. The last time someone wasn't specific I ended up blowing up my alternator cause I didn't have a capacitor for my 1200 watt amp and sub, so yeah be specific please. To be specific with you, I am trying to amplify all 4 of my infinity car speakers, and possibly if you could tell me what to do about the door tweeters.

• Answer:

  How did you blow up your alternator from subs? You don't even need a capacitor. Anyway, just look for an amp with up to 65wrms x 4 channels @ 4 ohms. Amps from the following brands are good: JL Audio, Kicker, Rockford Fosgate, Hifonics, Alpine, Infinity, Polk Audio, Boston Acoustics, Pioneer, Cerwin-Vega, Orion.