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In Reply to: RE: Trying Limage Speaker Placement posted by steven d on April 03, 2017 at 09:30:07
For true Limage setup the speakers should point straight ahead. They should be 40% into the room and you should be sitting within 2' of the back wall. Your room may not be ideal for a true Limage setup so you can play around trying other stuff but it is not Limage. I have a true Limage setup and frequency response is flat with very deep extended bass and an enormous soundstage
Alan
Follow Ups:
So I brought the Mags further into the room, from a distance of 83" to 124" from the front wall and I'm pleasantly surprised.The bass is more full and present, the midrange suck-out is less pronounced, and the overall sound is less thin and wispy (with no EQ). Now there's a better sense of stage depth and there's is less disconnect from left to right. There is a real power and energy to the music. The scale is larger too.
I still felt the need to apply a bit of EQ, I reduced the amplitude of boosted frequencies by half, and the cut frequencies by 2/3. Again, some fine tuning still to do.
With Limage-esque music is beautiful again.
Edits: 04/06/17
Glad it's working out
Enjoy
Alan
Ok, Alan, we will call this pseudo-Limage or Limage-esque then :)
Was not being critical. Just trying to supply some additional info that might help with your setup
Have fun
Alan
Critiques are important and welcomed.I fully realize my room is too square (and too big a square) for the method to work perfectly.
I had tried the speakers at 40% at first, but due to shape of the room on the left side much of the stage/imaging to that side was non existent. One observation from last night was that if I place myself so that the speakers' current position is 40%-ish the distance between me and the front wall the music is very impressive.The "fix" I'm trying at the moment with the EQ is definitely fun - all day yesterday I was itching to get home to put some music on, and, making different turnings with the EQ to shape the response is a fascinating experience to witness/hear what a small boost or cut to a band of frequencies does to the sound.Going from active to bypass mode, I can't believe I tolerated the response of the system as it was. I'm getting closer to the desired result.
Edits: 04/04/17
I note that both your room and steven's are nearly square dimensionally. Does Limage help mitigate the room mode challenge?
Not for true square rooms. If you are beyond the 1:1 ratio by 10% or more you should be well out of the problem range.
If you are beyond the 1:1 ratio by 10% or more you should be well out of the problem range.
steven barely squeaks by with 13%, but Alan fails at 7%. :)
AH!!! I updated my system profile to reflect the dimensions of the listening area. I don't know what I was smoking when I entered the numbers that were there previously.
The distance to the window from the kitchen is 27'.
The distance of the side walls is 22'.
Part of this space (rear and left) contains the master bath which eats up 9' of the length and 6' of the width.
you are stuck with what you get! :)
In this case, however, I really lucked out.
My upstairs room's 1.56 ratio of length to width is within an inch to the "Golden Ratio" of 1.62. Consequently, I'm able to get very neutral response with my dipoles after much experimentation with placement of them and bass traps.
I would not settle for anything less than 1.61. :-)
large, but an unfortunate combination of dimensions: 14x28. There was, however, a very entertaining first octave boost in the rear corners of the room.
I'm stuck with a 13 x 14 room. Fortunately, there's a 6' wide entrance which leads to a larger hall, breaking up the modes in the direction the Maggies are facing -- bass is much smoother with the speakers on that axis than the other way.
I swear I'll have a really nice listening room before I die . . .
Our current 11x11x21 bedroom, where I had a less-evolved system, was tops. I seem to recall "near field" being thrown around those days. We had the system there so our two cats wouldn't chew the wires or speaker grills during the day while we were at work.
It was only because of a flood in the bedroom that we moved the system out to the main area. I was having a party that weekend so I had set up the speakers where there was space to do so - man was I shocked at how big everything sounded and how smooth the bass was. The kicker was that my wife approved!
Three speakers, four amps, and five years on, this is where I'm at and its sounding it's best.
In my current space, speaker and bass trap position was optimized using measurements. While a third octave response doesn't tell the entire story, it is valuable for establishing a neutral sounding basis in the bottom octaves.
Are you sure? My room is 15X12 and it sounds incredible.
Alan
.
Sorry
My mistake. I corrected it to 15' X 12"
Alan
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