I have a Denon 3803 and an HSU STF-2 and I am about to purchase the M60/VP150/QS8 combo to go with it. I want to connect the sub using the LFE and the receivers crossover, not the speaker level connection. The reason why is because I have a new house with speaker wire and cable run in-wall where everything will be located and I don't want to run speaker wire across the floor from the sub to the speakers. When listening to music, can I achieve the same sound using the "LFE + Main" selection on the 3803 and set the M60's to "large"? Would I change that for watching movies? and finally where should I set the crossover.

Using this setup am I sacrificing anything? Thanks.