Well I asked this question to svs and they said I shouldn't worry about it, but asked me to set the phase to 180 and rerun audyssey to see how its reported and let them know. So if svs ain't worry I don't see how why I should be.
Im kinda leaning toward a mostly wired system now, wired keypads, sirens, motion sensors and glass break sensors. My real problem is doors and windows. Fishing wires through walls thru outside walls would be a big job. That part of the attic is only a few inches high and then getting through headers does not sound fun.
I worry about false alarms with wireless but many say the door sensors work pretty good.
Thinking about a diy home security system. There's a lot to chose from. I'm wondering if anyone can give me their experiences with these. I have a 2400 sq foot home and cats. I feel that motion detectors could be problematic. I don't have the house prewired at doors and window locations so wireless would be easier, but I don't want to mess with it if its not going to work very well.
I recently bought the PC13-ultra and I love it. My room is similar to yours, 17x22 with 10' ceilings. It more than fills my space with base that pounds on you.
As far as the surrounds ceiling would be ok, but if its not too late I would put them in the walls. the sound mixing in movies is designed with the notion that the surrounds will be on the side of you.
When i first got mine it seemed like the old sub produced louder base. I kinda had the same reqction. With blurays you can feel it more than hear it. Ay first this disappointed me but qfter a couple of movies i could now never go back. I think most of us are not famioiar with what base should be, the svs has transformed me to a beleiver that base should be felt, not listened to.
Try a bluray. I recently bought a pc13 ultra and was disappointed in it when I first tested it with my roku, dolby digital. I then plugged my phone in and had to play it way above reference level to get the sub to work at all.
Then I tried a bluray and it literally scared me! Others may chime in to explain why the levels may be so weak on other devices, but since mine is strictly bluray it wasn't a big deal for me.