Originally Posted by scarecrow420
Thanks for pointing out the audyssey discussion and official responses in the 805 thread kplex! There is some great info there and it certainly shows that Jeremy Anderson has been spot on with the advice he has been giving to everyone here in the 705 thread, regarding Audyssey
It's interesting to read that it doesnt actually attempt to set the channel trims to reference level (due to too much variance in the shipped microphone) but instead aims to set the relative trims so that all speakers are at the same level. And as Jeremy always points out, people who manually change the sub distance setting dont understand that it isnt a measure of physical distance and due to the subs crossover delays etc, you actually WANT the audyssey calculated distance!
Glad kplex linked to this. Even I didn't know it wasn't trying to set channel trims to a set point. At least we know anecdotally that it tends to set things 2-3dB below reference, but it's good to know that this wasn't particularly by design.
As for the subwoofer delay thing, there's a caveat: If you're seeing a detected distance that is wildly off from physical distance, like maybe more than 6 feet, there are steps you can take to mitigate this. For instance, I've found that most people tend to put their subwoofer too close to walls. Even if you're corner-loading your subwoofer, I recommend pulling it out at least 3-5 inches from the walls. Placing a sub too close to a wall can essentially make that wall act like a giant passive woofer, adding its own coloration to the sound. In my own room, moving my subwoofer slightly further from the wall completely changed its phase relation to the speakers. The same goes for speakers, especially if they're rear or downward ported - keep them a bit away from the walls to get the best sound out of them.
As with anything here, Audyssey can only work with the info you give it... so careful setup before running MultEQ XT is very important. There's a pinned Home Theater Setup 101 thread somewhere around here that will give you some education on how to set things up optimally. Audyssey does wonders as far as room correction goes, but it is no substitute for good old fashioned common sense setup and tweaking... and in conjunction with same can produce insanely good results.