Originally Posted by jakewash
Bob, I noticed you said you had to turn the sub all the way up to be effective. What did Audyssey set it's level to in the speaker setup? You may just need to bump the sub level up on the Denon to -1 or 0 and then drop the volume control on the sub itself. It could be when you did the setup routine Audyysey cancelled out a higher volume setting on the sub. It could also be you like a little more bass than Audyssey wants to allow. This is where an SPL meter comes in, so you can adjust the sub level to a few db higher than the rest of the system as many do, inspite of Audyssey's settings.
The procedure to calibrate the sub is on the second page of the "Audyssey Setup- One Step at a Time" guide. It is very clear and works well. A link to it can be found at the bottom of the first post of the "Official" Audyssey thread. (here)http://www.avsforum.com/avs-vb/showt...5#post14456895
Even though the instructions are in the thread, do as the OP says and scroll to the bottom of his post and click his link to the MS Word document that is MUCH clearer because it has all the indents, etc.
Basically, you run Audyssey from position #1. Pos. #1 NEEDS TO BE the center of the sound field the same distance from fronts as the primary listening position. Meaning if the main lit. pos. is off center, do not start there! Start in the center. The order of 2-6 is not important, but the distances the mic. is moved needs to be equal. They call for 2' distances between mic positions (just follow the diagram).
After going thru once, you select 'Calculate' (takes 2 mins or so), then select 'Save or Store', then go back to check what level Audyssey set your sub at. If it set it at -4 to -12, the gain on your sub needs to be turned down a bit.
A good starting place is the middle of your subs gain/vol. range. Definitely keep detailed notes on you initial and each changed setting. It's a pain to go thru once, then realize you forgot what the last setting was OR forgot to actually adjust the sub. (been there ;o). This takes a few runs thru the first cycle, but I can assure you, going thru the whole process and realizing you had made a setting change before starting, well sucks. Not to mention the WAF. After running Audyssey several times, having to ask the wife to take the dog for a walk each time... well, lest just say she was not 'enthused about the process. Now I do NOT mention running Audyssey if I want to try a change. I go into Audyssey stealth mode. When she happens to take the dog to the park, I turn off the fridge, the HVAC, take clock out of the room and get right to it. It must be dead quite or you will get wiggy readings. Like the distances it shows will be strangely off.
Of course testing for sub 'placement' is a totally separate issue. I'd think it might be good to get Audyssey to set the subs level between -3 to +3 , which is pretty close (some of us will obsess to +/- 1dB ;o). Then try different placements. If you think in theory, the new place would make it louder to Audyssey, you canturn the sub gain down slighty before running Audyssey. Write It Down.
So definitely print the word version of the one step at a time guide and read thru the whole thing until it makes sense. I started logging my settings and outcomes on the back sides of the set up printout . I date (and time) each pass describing what the set up consists of and what changes this pass entails. The settings and their results are always right with the guide. I keep it handy to refer back to.