Originally Posted by Prime316
Got a small mystery for you:
I have dual 15" subs in my home theater and thought they sounded a little over the top on heavy bass scenes. I checked where Audyssey set them last and the value was -1.5. That's well within acceptable range.
I then turned the subs' gains down a notch and ran Audyssey again and this time I got -12. mind you, I turned them down and not up. I had to turn the sub's down to almost 0 to get a reading of -3 again when it had set the sub put to -1.5 at about 9 o'clock before.
Anyone have any ideas why this would happen? I moved nothing in the room but a couple pillows on a couch.
I just set up a second VTF-3 Mk4 in a ~4000 cubic ft. room. Stacked in a quasi corner (ports and driver fire into the room, not the corner.) I use a mono Anti-Mode and XT32. I gain matched the subs, ran AM then XT32 and my results were bizarre.
I'm comfortable with Audyssey and was confident in my prediction of what i should see and it was different everywhere than what it should have been. Fooled around for a few hours and got a result that was exactly what I predicted it should be.
My conclusion is that multiple subs confuse Audyssey more than I thought it would
My guess is that your first setup was wrong, and your current is right. But, what do you mean by "zero?" Do you mean just off the knob being physically bottomed out? Or just off the first tick mark? If you're between the first and second tick marks (second = 9:00) that sounds right based on my experience with the VTF-3 - I'm a little below 9:00 on both - but if you're below the first tick, that sounds a little suspicious.
Did you gain or level match the subs? As part of the setup routine that got me the results I expected, I gain matched them using the bass test tone from the AVR during Audyssey setup, while simultaneously setting them for 75db as per the AVR. Originally I had used a test CD and gain matched them as a separate process.