Marty is spot-on. The auto setup on the Velodynes is grossly inferior to a manual setup but both are limited to a single microphone position and only account for frequency response correction.
The JL is a pretty simply single frequency parametric EQ and the Infinity/Revel offering is, imho, tedious without being comprehensive. I do use a JL sub in one system and I think it is great but I do use an external EQ with it.
The Paradigm subs with ARC offer multiple microphone positions and account for FR as well as mode/decay compensation. AFAIK, Paradigm has the best built-in sub EQ: http://www.stereophile.com/musicintheround/music_in_the_round_40/index.html
Kal
The JL is a pretty simply single frequency parametric EQ and the Infinity/Revel offering is, imho, tedious without being comprehensive. I do use a JL sub in one system and I think it is great but I do use an external EQ with it.
The Paradigm subs with ARC offer multiple microphone positions and account for FR as well as mode/decay compensation. AFAIK, Paradigm has the best built-in sub EQ: http://www.stereophile.com/musicintheround/music_in_the_round_40/index.html
Kal