there both nice drivers, with my personal experience, the se had better sq(as you probably figured) it can still get loud as hell, but the 2000spl is more orientated to you guessed it, spl. still has pretty good sq, but not as good as the se. both very nice drivers though.
the 2000spl is a better buy in my oppinion though considering you can get one brand new for 90bucks. but its all in what your looking for i suppose(sq/spl)