How are you configuring the surrounds though? I only have really 2 full range speakers, and the rest are satellites, but I can cross them over fairly well at 80 Hz.
My mains are ported and only go down to around 40 Hz. I do like to run them full range, I think it makes a small difference, but rarely in movies like Pirates of the Carribean they can get over excited. With the woofer well integrated though, I can run my 5 speakers as satellites and it’s pretty awesome. With a 6.5" woofer, I can only go so far. For music I never need more.
The rest of my speakers use 5.25" woofers though, so when I do movies I have to set the crossover the the highest common denominator, which is around 80 Hz.
Best,
Erik