yeah but its sad to see a DC restricted in a sealed enclosure but yeah that would work, its gonna take up his most of his budget if he wants to buy new tho. I'm just assuming that the 300-400 dollar budget would be for both subs, amp and installation/wire kits since he wasn't clear about that.
m2 Level 3 10, Droppin HZ Car Audio Here's a link to The DC level 3s OP
Whatever you do op dont get the pioneer champion subs... i'm sure they'll pop up if your searching around for subs in that power range. They are horrible sounding in sealed enclosures.