@Mtrot I haven't left them running LARGE, but that's also because I have custom subs (4x15" drivers in a sealed configuration; 4000W) I built myself that will hit 115dB peak at 5Hz, flat response through a simulated Linkwitz-Transform. I do have a large, open room.
I would see no problem with keeping Crescendos set to LARGE if you are listening to movies around 75dB with 95dB peaks at your seat, assuming you sit about ~10-15 feet away from the speakers. You could go higher in volume but I think that's probably about the point you will get better results from really beefy subs. You can't cheat physics. :-)
I would see no problem with keeping Crescendos set to LARGE if you are listening to movies around 75dB with 95dB peaks at your seat, assuming you sit about ~10-15 feet away from the speakers. You could go higher in volume but I think that's probably about the point you will get better results from really beefy subs. You can't cheat physics. :-)