Whats the specs on that amp? Im guessing 500watts RMS, but at what ohm? Another thing, you can do a couple of combinations. If you really want 15s, you can do 3 of them, JL 15W0's, they are rated at 150w so you can get 3 of them, for only 115 per sub. You could even do 4 12s, Kicker Comps, which are about 65 a piece. Both of these combinations will pound pretty good, and the subs are both fairly good. If you wanted single sub set ups you could do a single Alpine Type R for about 170 bucks, or a Kicker 10" or 12" L5, for 175-195, or a JL 15W6, for 235. For dual sub set ups, you could do JL 12W3s or 2 Kicker Comp VRs. Just for the record, im not preaching kicker or JL im just giving you some options because you said you don't want to spend a ton of money. You won't find any boxes specifically for explorers, unless they are thunderforms, which is for a single subs. With these combinations, you would probably be best off to build your own box, which can be done easily for 40 bucks.
