Im currently in the market for either a 16-46cs or 20-39cs. My room measures 12.8x8x16.8. Its around 1720 cubic feet. I mostly listen to movies and play games through my PS2 on my HT right now. Occasionally listen to rap music and some rock. Im starting to really lean toward the 16-46 right now. I love the lows and to feel the bass. One thing I was afraid of was missing out on some othe the midbass that the 16-46 is not tuned for. Ive read on here that a couple of people said there was a little less punch, howere this could be easily fixed by turning up the sub a little, and whalaa, it hit just as hard as before. One guy was given the option from someone from svs I guess, to look into custom ports , and that He could just switch out between the two at will, that one would give more low end, and one would give more mid kick. That seems veeeeeeeeeeeeeery interesting in having the best of both worlds with ease. I love low bass. But can your really tell a difference between the 16-46 and the 20-39? Also, are what the other people on the forum said correct, that to remedy the midbass a little simply turn the sub up or run it slighty hot? Im saying this in regard to jeffry's (sp) post about the 16-46 vs sunfire. He said that the sunfire did hit a little bit harder, but to make the same effect with the 16-46 just run it slightly hot and there you go. This is what I got out of his post, please correct me if I am wrong. Ideas?