I'm currently looking for a single 10" sub for my vented box that a friend just gave me thats 1.10 cu ft. So my 2 sub choices that i finally came down to is the alpine type r dual 4 ohm or the jl 10w6v2. I was only looking for spl but since i have no rear speakers in my car i want both SQ and SPL. out of these to subs, which one would you guys go with. oh yea the sub would be powered by a rockford fosgate 500bd mono amp.