Hey wat up, I listen to rap 100%, whatever has the best beat.....I talked to my friend and he talked me into getting one sub instead of two but with better quality, more rms wattage, better amp, ect.
althogh i do like the looks of having 2 subs tho, other then that what all do u need for wiring it, do u connect it staight to battery or could u just disconnect the subs that the cobalt comes with on the top of the trunk and connect those wires connecting those to the amp then amp to aftermarket subs. if that makes any sense lol just tell me what u would do man.....
Okay, well, I have 2 subs, with pretty good wattage but not huuge (hopefully upgrading soon lol). 2 subs will move mor air whereas 1 powerful sub will deliver clearf, tight bass. Good choice though.
Now, what you will need to do is choose a sub first. i am running JBL's, which I think is an amazing brand. Pricey, but ebay is your friend. I recommend the power series 12'' if you can fit it into your budget (p1222 or the new equivalent). It is a verry powerful sub, and don't let the RMS fool you, all their subs are tested at 7x their rms value for quality and clarity. I know that rockford fosgate make some sick subs too, p3's and what not. Find a sub that fits your budget etc. After deciding on a sub, then you;ll have to choose a good aftermarket amp to deliver enough power to it. I would recommend getting an amp that has the RMS value a bit higher than that of the sub. (just make sure when you install it that you don't max it out, blowing the sub lol). Also, if you want to upgrade your head unit (suggested) then do so now. Doesn't have to be too pricey but something with ipod or mp3 control as well as good sub/bass/EQ setting is really good to look for. Check the specs for the sub, and it will tell you what size the box should be. I go with vented boxes because they do deliver more dB and more punch. Sealed box will be different than ported a bit. Bit less loud, less air movement I guess. Now, the wiring kit will allow you to connect this all up. If you are getting a capacitor, get 3 farad or above if you can. Power acoustik makes a great one, me and some friends have them, (mines 3farad) works amazing and not very expensive either. The wiring kit will have a fuse between the battery and amp connection (or if you buy a capacitor, then the wire will go from the battery with a fuse on the line, to the cap, then from the cap to the amp...ill explain this in more detail after you buy the system).
What is included in the wiring kit is large power wire for the power supply to the amp and capacitor, as well as auxiliary cords, which connect from the head unit subwoofer output to the amp. If you give me a budget I could get a better idea of what kind of stuff to suggest. Wiring kit is pricey if you buy from a store, try online as well. Amps are the only thing to watch out for when buying online. Try and find a friend who works at a major electronics store who can buy it for you with his discount then slip him a bit extra lol. that's how I got my rockford p1000.1 (which got stolen 2 yrs ago :'( amazing amp).
All that said, do your research, get back to me with a budget and I can help you more if you need. After you decide what to buy, we can talk installation (if you decide to do it yourself). Sometimes, it is worth it to buy a package that includes install if there is one offered at a store with good equipment.
I hope this answers some questions man! ask any questions and ill get bakc to you asap.