Yeah, it's the fresh vinyl.
Use the mirror method if you have someone to move the mirror while you sit in the listening position. It's the easiest way. Oh yeah, and it's OK to look directly at the mirror, you don't have to keep your head pointed forward ;-)
If you're alone :-(( here's a good approximation: measure the distance from your ears when seated, straight forward to a point between the speakers (you can do this on the floor since you're ALONE) Then, mark a point on each sidewall which is exactly opposite the midpoint of this line. This is easy to do, even if you're ALONE. First, mark the midpoint of the line on the floor with a piece of tape. Then take the tape measure and measure the distance from the back wall (behind the speakers) to the midpoint mark. Write it down. Then, measure off that same distance along each side wall (from the back wall) and mark the spot(s).
If you start your absorbtive material/panel/etc. at this point on the wall and extend it toward the back wall by 1.5 feet for every 5 feet of (total) room width, you'll be right on.
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Use the mirror method if you have someone to move the mirror while you sit in the listening position. It's the easiest way. Oh yeah, and it's OK to look directly at the mirror, you don't have to keep your head pointed forward ;-)
If you're alone :-(( here's a good approximation: measure the distance from your ears when seated, straight forward to a point between the speakers (you can do this on the floor since you're ALONE) Then, mark a point on each sidewall which is exactly opposite the midpoint of this line. This is easy to do, even if you're ALONE. First, mark the midpoint of the line on the floor with a piece of tape. Then take the tape measure and measure the distance from the back wall (behind the speakers) to the midpoint mark. Write it down. Then, measure off that same distance along each side wall (from the back wall) and mark the spot(s).
If you start your absorbtive material/panel/etc. at this point on the wall and extend it toward the back wall by 1.5 feet for every 5 feet of (total) room width, you'll be right on.
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