Infinity Perfect 12.1 Online Purchase

The Infinity Perfects will blow any kicker out of the water when t comes to SQ.  If you just want to hear a boom, then go with kicker.  If you want good SQ quality, then definitely stick with the Infinitys.  Oh and mariocesar, what is stock alternator output?  A battery will help if you plan on listening your system will the car if off for a long time.  Upgrade the alternator before the battery.  You could even upgrade the Big 3 first to see if that will help at all.That's my opinion. Take it, leave it, or correct me.

Yea the Big 3 is the term used for the wires between your battery and alt, your ground from alt to chasis, and the ground from the battery to the chasis.  This will make the current load from your alternator flow easier and can improve your system's power.  And SQ means sound quality.  That is just how accurate the speakers are and how close they sound to the way the music was recorded. That's my opinion. Take it, leave it, or correct me.