audio not trying to start a business? just want to learn what would be the best amp/woofer combo for a reasonavle price not looking for 2000 dollar system but anything totaling under a grand would be nice. and whats a capacitor. and why does ohms and watts need to be calculated and is it hard to do. i bought a 12 in xploid and blew it so wats a good warm up for subs and how long before you can unleash their power. how do you determine if your battery and alternator have enough juice to push what you have. i hear that different size woofers produce different beat sounds so if i were to get a 10 12 and 15 would that be a good all around sound. and tweeters what are they and are they usefull or needed. thanks i know its a lot but im just curious.