jl would sound better but the 2 type rs should get louder another sub would be a 10 or 12" kicker l5 in a ported box (not small ported but at least the med ported req by kicker the bigger you go the louder and better they sound) i know some people will disagree but if done right it will get plenty loud and have better than average sq. also look into memphis subs the m3s can get loud and sound pretty good too. but also remember 1 thing 90% of how this will sound is going to be install dependant REGUARDLESS what the equipment is.