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Apogee stage manual speaker distance chart

Does anyone else but me not understand the chart that's in the apogee manual about speaker distance to the rear wall? I've scoured the net looking for someone as stupid as me but, alas, I have failed. Any help out there?
whiznant
whiznant OP
17 posts
 
Ok. Had a chance to examine your explanation. Currently on the way back from RMAF'n it up and my buddy is driving so I'm typing.

What you are saying is exactly what I assumed. I did have one apephany though. I thought that the distance from the rear wall was a suggested distance as opposed to that being totally arbitrary. I guess the thing that throws me off about the chart is the blank spaces under the 4' column. Have any light to shed there?

As a for instance, what would be the tilt back for a listening distance of 6' and the speakers 4' from the back wall? And why is there a measurement for tilt back at 3' but not 4'?

Thanks you for your detailed explanation above.
rgs92
974 posts
 
It may be hard to believe, but I had my Stages about 18 inches from the wall behind them for the best sound, and they were best on the long wall, firing across the room, not down the center, almost monitor-like.
I didn't measure, but I just used moderate tilt-back.
There was no ringing or beaming or boom.
Not too much depth, though, but they did disappear like no other.
bombaywalla's avatar
bombaywalla
1,958 posts
 
I thought that the distance from the rear wall was a suggested distance as opposed to that being totally arbitrary.
that's right - it's not arbitrary. you can see that 3'-4' is recommended in Diagram 4 as well.

I guess the thing that throws me off about the chart is the blank spaces under the 4' column. Have any light to shed there?
no idea why they left these 2 positions empty. Several thoughts crossed my mind:
* you cannot sit 6' or 8' away & have the speakers 4' from the rear wall (this seems ridiculous!)
* if you sit 6' or 8' away the tilt remains fixed at 5" for both (agaain, this makes little sense)
* from the 3' column note that the tilt angle increases 1" when distance is reduced 10'->8' & another 1" when distance is decreased from 8'->6'. Thus, for the 4' column, the tilt-back for the 8' distance = 6" & for the 6' distance tilt-back is 7".

Thanks you for your detailed explanation above.
no problem. good to note that you found it somewhat useful.
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