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Post by Hughes, G D on Oct 17, 2017 16:47:08 GMT -5
As I read the subject line I realize how inadequately it describes the question on which I seek guidance. While I await delivery of my XMC-1, I plan, I scheme, I plot, I brood, Maybe, obsess a little. Optimizing speaker placement seems like a logical place to start. If mods think this goes in speakers or sub-woofers then so be it. Fundamentally, it goes to setting up the XMC-1 in an unusual room and the ability (capability?) of the unit and it's Dirac application to compensate. Me thinks.In the first image you can see the ADP Bi-Pole surrounds circled in yellow, Then you can see the ceiling back surrounds circled in red. Next are possible locations for monopole as rear surrounds marked in blue. Yes, only three possible locations as I see it. the one toward the middle is closer to behind the seating location but the two outer circles would make the more symmetrical relative to each other, the room, and the surrounds. So, should I stick with the ceiling back surrounds or move to the much higher quality monopole speakers as back surrounds? If the latter then how to place them? Next are the subs. Yes two subs which are fairly different so I'll be running them as dual-mono. Question is, how good or bad can I expect this location to be. When running text tones in the past, I don't have any nulls near the listening area but, they never seem right. Please advise and consider I just do not have any other place for the subs. Maybe the question should be, How to optimise the subs in this location. You can see the black screens which hide them left and right.
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Post by foggy1956 on Oct 17, 2017 16:50:06 GMT -5
As I read the subject line I realize how inadequately it describes the question on which I seek guidance. While I await delivery of my XMC-1, I plan, I scheme, I plot, I brood, Maybe, obsess a little. Optimizing speaker placement seems like a logical place to start. If mods think this goes in speakers or sub-woofers then so be it. Fundamentally, it goes to setting up the XMC-1 in an unusual room and the ability (capability?) of the unit and it's Dirac application to compensate. Me thinks.In the first image you can see the ADP Bi-Pole surrounds circled in yellow, Then you can see the ceiling back surrounds circled in red. Next are possible locations for monopole as rear surrounds marked in blue. Yes, only three possible locations as I see it. the one toward the middle is closer to behind the seating location but the two outer circles would make the more symmetrical relative to each other, the room, and the surrounds. So, should I stick with the ceiling back surrounds or move to the much higher quality monopole speakers as back surrounds? If the latter then how to place them? Next are the subs. Yes two subs which are fairly different so I'll be running them as dual-mono. Question is, how good or bad can I expect this location to be. When running text tones in the past, I don't have any nulls near the listening area but, they never seem right. Please advise and consider I just do not have any other place for the subs. Maybe the question should be, How to optimise the subs in this location. You can see the black screens which hide them left and right. Are you familiar with REW?
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Post by Gary Cook on Oct 17, 2017 18:02:43 GMT -5
I'm sure that you are aware but there's lots of acoustically bad stuff going on there, but the saving grace is the space that the R,L & C are firing into. What is the floor covering? Rugs and/or carpet would make a difference if not already there. Are there curtains on the windows? Double layer curtains would help a lot. I'd suggest replacing the picture on the wall behind the listening area with an acoustic panel, you can get them made with a print on which could be the same scene as the picture. Personally I'm not a fan of mounting speakers on walls close to ceilings (much the same as speakers close to side walls), so I'd suggest moving them down the wall as far as possible.
Considering the bulk of the wall/shelf unit it shouldn't be an issue mounting the subs off the floor.
Speaker location is tricky in complex shaped rooms and once you have mounted them on the walls it's hard to move them. What I do is rent some commercial speaker stands, extendable ones, so that its easy to move the speakers around to get the best sound. Then mount them permanently in those positions.
It's fair bit of fiddling but what I would do is determine the best speaker locations by ear and then run DIRAC and see that what it recommends. Look at the results and pick the worst speaker (the one that needs the most correction), move it around and see if you can get a better result. Once that speaker location is optimised, move onto the next worse one. The idea is to minimise the amount of correction DIRAC has to apply. Yes, it's going to take some time, maybe a whole weekend, but only needs to be done once, so consider it an investment for the long term.
Hope that helps Cheers Gary
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Post by Hughes, G D on Oct 17, 2017 18:18:39 GMT -5
As I read the subject line I realize how inadequately it describes the question on which I seek guidance. While I await delivery of my XMC-1, I plan, I scheme, I plot, I brood, Maybe, obsess a little. Optimizing speaker placement seems like a logical place to start. If mods think this goes in speakers or sub-woofers then so be it. Fundamentally, it goes to setting up the XMC-1 in an unusual room and the ability (capability?) of the unit and it's Dirac application to compensate. Me thinks.In the first image you can see the ADP Bi-Pole surrounds circled in yellow, Then you can see the ceiling back surrounds circled in red. Next are possible locations for monopole as rear surrounds marked in blue. Yes, only three possible locations as I see it. the one toward the middle is closer to behind the seating location but the two outer circles would make the more symmetrical relative to each other, the room, and the surrounds. So, should I stick with the ceiling back surrounds or move to the much higher quality monopole speakers as back surrounds? If the latter then how to place them? Next are the subs. Yes two subs which are fairly different so I'll be running them as dual-mono. Question is, how good or bad can I expect this location to be. When running text tones in the past, I don't have any nulls near the listening area but, they never seem right. Please advise and consider I just do not have any other place for the subs. Maybe the question should be, How to optimise the subs in this location. You can see the black screens which hide them left and right. Are you familiar with REW? Yes, though, I'm going to give Dirac LE a try first. I think reasonable speaker placement has to happen first. That's what i want to accomplish first
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Post by Hughes, G D on Oct 17, 2017 18:32:02 GMT -5
I'm sure that you are aware but there's lots of acoustically bad stuff going on there, Yes, Hence the questions but the saving grace is the space that the R,L & C are firing into. What is the floor covering? Bad, she pulled the carpet out and did the entire living, dining, kitchen in tile. Luckily it's not shinny tile. LOL ;-) large very heavy rug with heavy padding under them. 10x12 in living room. Rugs and/or carpet would make a difference if not already there. Are there curtains on the windows? Large three glass door on right side to listening position and open to left entry and dinning. There will be no curtains, I tried but her nads are bigger than mine. And, she's paying for the XMC-1 so... Double layer curtains would help a lot. I'd suggest replacing the picture on the wall behind the listening area with an acoustic panel, you can get them made with a print on which could be the same scene as the picture. I can put some acoustic panel material behind the large picture, might help. Personally I'm not a fan of mounting speakers on walls close to ceilings (much the same as speakers close to side walls), so I'd suggest moving them down the wall as far as possible. I do have the stands so, might try that first. Run the Dirac and see what it says.Considering the bulk of the wall/shelf unit it shouldn't be an issue mounting the subs off the floor. Speaker location is tricky in complex shaped rooms and once you have mounted them on the walls it's hard to move them. What I do is rent some commercial speaker stands, extendable ones, so that its easy to move the speakers around to get the best sound. Then mount them permanently in those positions. It's fair bit of fiddling but what I would do is determine the best speaker locations by ear and then run DIRAC and see that what it recommends. Look at the results and pick the worst speaker (the one that needs the most correction), move it around and see if you can get a better result. Once that speaker location is optimised, move onto the next worse one. The idea is to minimise the amount of correction DIRAC has to apply. Yes, it's going to take some time, maybe a whole weekend, but only needs to be done once, so consider it an investment for the long term. I'm off work in two weeks for a whole week. No one home but me. That's why I am planning and scheming now. Thanks for your 2CT sir.Hope that helps Cheers Gary
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