Hi, ok im a newbie and have just fitted my single din pioneer deh-p85bt headunit to my vectra sri 1999, what i want to no and hope not a silly question but am looking at buying either a single fusion 12" sub with a seperate amp or a Double Edge 12" sub with seperate amp, i have a hatchback car and am just wondering if i would get the same amount of bass out of each? silly question but what have you guys/girls got on your vectra hatchbacks and what would you recommend?

Want to get it sorted by the weekend and didnt want to get the wrong one fitted and regret it if you no what i mean, hope to hear your comments and again thanks..