Quote Originally Posted by sccb View Post
There are differences when moving the speakers or my listening positions, but the primary difference (particularly in the bass and mid-range) when moving from seated height to standing doesn’t seem to changed based on moving the speakers in or out or my distance from the speakers. The overall change in response between ear level and standing is quite noticeable and not something I had with my 2EXs. I simply happened to notice the change when getting up from my seated position which had never happened with the 2EX as the changes with it are much more subtle and require more carful listening to notice.

I’m at a loss for the cause, but I prefer the sound of the speakers when standing, so hoping there is a way to get that sound when seated.
Hi sccb,

In the frequency range you are describing, bass and lower mids, you would have to be at a very extreme off-axis vertical angle to reach a point where the sound produced by the actual speaker would change.

Please see here:



In the bass and midbass range, you would have to at least be at a 50 degree off-axis vertical angle for the sound to change, and that is by only by 3dB. (challenging to hear)

In the lower midrange, from 2kHz and lower, also at a 50 degree vertical angle.

I am not saying you aren't hearing what you are, but it is not due to the speaker. There is obviously some form of destructive vertical null at your main listening height.

Or...

The LX has the widest vertical dispersion of any speaker we offer, depending on your floor and ceiling, you could be getting reflections. However, based on your description of what you are hearing, I doubt this because you are describing the sound as being "thin" at your main listening position which better correlates with destructive room modes because they affect bass and midbass frequencies.

The LX has the deepest bass extension and the most bass energy of any speaker we have ever manufactured, they are, by far, the fullest sounding speaker we offer. That additional energy could be exciting those modes differently than Sierra-1 or Sierra-2EX, which have considerably less bass energy.

So -- since you have a receiver with Audyssey, I recommend using Audyssey to take measurements of each speaker with the mic properly positioned at your exact listening position and height.

Let's take a look at what is going on.

A quick fix to get the sound you want might be flipping the speakers 180 degrees vertically so that the tweeter is on the bottom and woofer is on the top. No problem at all doing this, this changes the position of the woofer and rear port relative to the floor and ceiling height, and your ears.

Also, what are the dimensions of your room, including ceiling height?