i recently purchased axiom speakers. a 6.1 channel system. i got the vp150,mti60s,three qs8s, and i run the vtf3mk2 sub. my main concern is my onkyo receiver. i want to upgrade. so over the past couple of months i've looked at hundreds of receiver reviews. finally after much debating with freinds i've choosen the denon avr3805. but i do have a question about it. it says its a 7.1 channel receiver. so does this mean i'll have to buy another surround speaker? or can it be run as a 6.1 channel receiver.