I'm not familiar with the 805. If it allows you to select different crossover settings for the different speakers, you will want to experiment and look at the specs for each speaker in your setup.
You may want to have a higher setting for the Q's and the VP150 compared to the 80's.
I've done lots experimentation with music and movies and I find the 80hz crossover with everything set to small works best for all situations. My Denon only allows for one universal crossover setting. Also, a lot has to do with proper sub placement and calibration to blend with the mains.
