i have a onkyo TX-SR503, and its running VE-12 fronts, VE5C center and VE5M surrounds, and a Velo CHT-10R sub. with fronts set to large (due to the 12 inch drivers and they are rated down to 28Hz) and surrounds/center small witha 80hz crossover its great. i noticed tho if i set sub to no the fronts get alot more low bass, and they sound great, yet with sub on they seem to miss out on the really low bass even set to large. this only happens on DVDs, on CDs they seem to get full range. i tried hooking sub up to the DVD and setting sub to NO on reciever but it seemed like the bass was less, and not as deep even though the two fronts and sub where now all doing the low stuff. are the fronts and sub canceling each other?? are the dolbydigital tracks recorded so the fronts dont get the really low stuff even set to large??