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Post by Deleted on Mar 28, 2020 16:06:42 GMT -5
Just hung two Acoustimac panels behind rear ported towers. 16 more gray and black panels to install! Moved into an open floor plan house some three months ago. Up until now the room is untreated. The room is undisciplined and talks back to me! In all seriousness, hitting the mute button on the remote results in the music playing for what seemingly is a second as the music continues bouncing around the walls. I ordered 18 in total Acoustimac panels to place around the room. Two are installed behind the rear ported speakers. I plan to hang 8 above the TV up to the ceiling and 3 on that left wall. Other panels will be placed on reflective areas.
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Post by ttocs on Mar 28, 2020 16:54:37 GMT -5
Nice setup! Those plants probably help, something my room is lacking.
My room is a multipurpose great room. I found that having area rugs with padding makes a huge difference, so I have one which covers the floor between seats and speakers and under the dining table. I also made the choice of not having a coffee table between seating and speakers, the sound reflection was too noticeable with one in place.
The ceiling is going the right direction though, mine is the same way. When my setup was turned 90 degrees the sound was problematic, but now it's been very easy to cope with.
My choice of speaker type, directional dipole, precludes me from having much input for how to handle the other reflections you need to cope with.
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Post by Deleted on Mar 29, 2020 0:10:06 GMT -5
Nice setup! Those plants probably help, something my room is lacking. My room is a multipurpose great room. I found that having area rugs with padding makes a huge difference, so I have one which covers the floor between seats and speakers and under the dining table. I also made the choice of not having a coffee table between seating and speakers, the sound reflection was too noticeable with one in place. The ceiling is going the right direction though, mine is the same way. When my setup was turned 90 degrees the sound was problematic, but now it's been very easy to cope with. My choice of speaker type, directional dipole, precludes me from having much input for how to handle the other reflections you need to cope with. Thanks ttocs, Added the plants in an attempt to disperse some of the sound in front of the windows. And I hear ya bro, while you say your room is a multipurpose room I emphasize multi-person room. My wife won't appreciate ridding of the coffee table or covering our floors. As is now I have 16 more panels to add but I'm doing so slowly in order to acclimate my beloved in order to not cause shock.
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Post by Boomzilla on Mar 29, 2020 5:51:13 GMT -5
Hi @shimei -
Please keep us posted as to how the sound changes as you add new panels. My experience in my room was that the very first few panels made the biggest difference. I'm curious to see if your experience is the same.
Thanks - Boomzilla
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Post by Deleted on Mar 29, 2020 11:25:50 GMT -5
Hi @shimei - Please keep us posted as to how the sound changes as you add new panels. My experience in my room was that the very first few panels made the biggest difference. I'm curious to see if your experience is the same. Thanks - Boomzilla Hey Boom, The two panels added behind the towers in between them and the wall have made a pretty noticeable difference already. Seems the "boominess" from the rear firing ports against the wall has been tamed [guessing this was the first spike in the room correction software around 180hz]. A lot of people recommend I pull the Ulfberhts away from the wall by 4 feet but that wasn't an option in the multi-person room. There's a foot between the dual 4.5" ports and the wall currently. The biggest difference has been made to the front sound stage imaging. The room has a left front corner whereas the right front has no corner but extends out another 10 feet. Because of this the left side tower was corner loaded definitely playing louder having a natural room gain. The sound is more even now from adding the 4 ft by 2 ft panel behind the towers but moreso the left side. I wasn't expecting this surprise at all! I take it that not all acoustic panels are made the same as some suggested to me that I need a minimum of 5" thick panels behind the towers. These particular panels are 2 and 1/2" and made from Rockwool Mineral Core Insulation by Acoustimac.
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Post by foggy1956 on Mar 29, 2020 12:47:14 GMT -5
Hi @shimei - Please keep us posted as to how the sound changes as you add new panels. My experience in my room was that the very first few panels made the biggest difference. I'm curious to see if your experience is the same. Thanks - Boomzilla Hey Boom, The two panels added behind the towers in between them and the wall have made a pretty noticeable difference already. Seems the "boominess" from the rear firing ports against the wall has been tamed [guessing this was the first spike in the room correction software around 180hz]. A lot of people recommend I pull the Ulfberhts away from the wall by 4 feet but that wasn't an option in the multi-person room. There's a foot between the dual 4.5" ports and the wall currently. The biggest difference has been made to the front sound stage imaging. The room has a left front corner whereas the right front has no corner but extends out another 10 feet. Because of this the left side tower was corner loaded definitely playing louder having a natural room gain. The sound is more even now from adding the 4 ft by 2 ft panel behind the towers but moreso the left side. I wasn't expecting this surprise at all! I take it that not all acoustic panels are made the same as some suggested to me that I need a minimum of 5" thick panels behind the towers. These particular panels are 2 and 1/2" and made from Rockwool Mineral Core Insulation by Acoustimac. Someday with the Mrs. gone pull the speakers out as an experiment? World of difference with my Double Impacts.
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Post by mountain on Mar 29, 2020 13:41:02 GMT -5
Hey Boom, The two panels added behind the towers in between them and the wall have made a pretty noticeable difference already. Seems the "boominess" from the rear firing ports against the wall has been tamed [guessing this was the first spike in the room correction software around 180hz]. A lot of people recommend I pull the Ulfberhts away from the wall by 4 feet but that wasn't an option in the multi-person room. There's a foot between the dual 4.5" ports and the wall currently. The biggest difference has been made to the front sound stage imaging. The room has a left front corner whereas the right front has no corner but extends out another 10 feet. Because of this the left side tower was corner loaded definitely playing louder having a natural room gain. The sound is more even now from adding the 4 ft by 2 ft panel behind the towers but moreso the left side. I wasn't expecting this surprise at all! I take it that not all acoustic panels are made the same as some suggested to me that I need a minimum of 5" thick panels behind the towers. These particular panels are 2 and 1/2" and made from Rockwool Mineral Core Insulation by Acoustimac. Someday with the Mrs. gone pull the speakers out as an experiment? World of difference with my Double Impacts. Definitely. You may be in danger of starting to beg for every foot, đ
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Post by Boomzilla on Mar 29, 2020 14:55:25 GMT -5
...The room has a left front corner whereas the right front has no corner but extends out another 10 feet. Because of this the left side tower was corner loaded definitely playing louder having a natural room gain. The sound is more even now... Hi @shimei - Might I also suggest that you play a bit with the "balance control" on your preamp? Sometimes even a dB or so to the "weak side" will make a miraculous difference. Boom
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Post by repeetavx on Mar 29, 2020 16:26:49 GMT -5
Yes! I'm glad you're enjoying your room acoustic treatments. Don't add too many to the "front" of the room because you want to keep it Lively. Judging from the picture, you'll want most of the absorbers behind the listening area around the "talking area". (I'm guessing that their is a dining table behind your listening chairs). Keep us posted about how each change, changes the sound. And thanks for your post!
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Post by Deleted on Mar 29, 2020 16:56:33 GMT -5
Hi @shimei - Might I also suggest that you play a bit with the "balance control" on your preamp? Sometimes even a dB or so to the "weak side" will make a miraculous difference. Boom I initially tried to use the preamp balance control but the problem was that the entire left side wasn't boosted from corner room gain. There are actually a few spikes at various frequencies. I tried to compensate for the room digitally, now I'm zeroing out everything digitally and trying to manhandle or tame the room itself. Will run room correction in stages as the panels go up. The Onkyo shows at what frequencies standing waves exists in the room. Enjoy, William
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Post by Deleted on Mar 30, 2020 1:43:48 GMT -5
Stage 2: Back far wall treated. 12 more panels to hang!
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Post by audiobill on Mar 30, 2020 4:22:39 GMT -5
Looking quite nice!
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Post by 405x5 on Mar 30, 2020 9:04:45 GMT -5
Just hung two Acoustimac panels behind rear ported towers. 16 more gray and black panels to install! Moved into an open floor plan house some three months ago. Up until now the room is untreated. The room is undisciplined and talks back to me! In all seriousness, hitting the mute button on the remote results in the music playing for what seemingly is a second as the music continues bouncing around the walls. I ordered 18 in total Acoustimac panels to place around the room. Two are installed behind the rear ported speakers. I plan to hang 8 above the TV up to the ceiling and 3 on that left wall. Other panels will be placed on reflective areas. I like that center channel....appears nicely proportional to the mains....have you tried the sub. in the front left corner rather than the inner location? Bill
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Post by Deleted on Mar 30, 2020 12:36:02 GMT -5
Just hung two Acoustimac panels behind rear ported towers. 16 more gray and black panels to install! Moved into an open floor plan house some three months ago. Up until now the room is untreated. The room is undisciplined and talks back to me! In all seriousness, hitting the mute button on the remote results in the music playing for what seemingly is a second as the music continues bouncing around the walls. I ordered 18 in total Acoustimac panels to place around the room. Two are installed behind the rear ported speakers. I plan to hang 8 above the TV up to the ceiling and 3 on that left wall. Other panels will be placed on reflective areas. I like that center channel....appears nicely proportional to the mains....have you tried the sub. in the front left corner rather than the inner location? Bill Life for the subwoofer actually began in the left corner. Too much localization and gain so the sub was moved inside of left speaker and then to the right inside which seems to be the sweet spot. At the current location the sub receives -15db gain in relation to the towers. At this point I really don't want another subwoofer but its the visual lack of symmetry that bothers me. Sometime this or next year I'll order another 4-10 sub to visually even out the front sound stage. The center was custom built by Tekton's Eric Alexander, soncially matched the Ulfberht L and R. It houses 4 6" drivers and 5 2" tweeters in an MTM array [3 way center]. Enjoy, William
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Post by 405x5 on Mar 30, 2020 13:03:37 GMT -5
I like that center channel....appears nicely proportional to the mains....have you tried the sub. in the front left corner rather than the inner location? Bill Life for the subwoofer actually began in the left corner. Too much localization and gain so the sub was moved inside of left speaker and then to the right inside which seems to be the sweet spot. At the current location the sub receives -15db gain in relation to the towers. At this point I really don't want another subwoofer but its the visual lack of symmetry that bothers me. Sometime this or next year I'll order another 4-10 sub to visually even out the front sound stage. The center was custom built by Tekton's Eric Alexander, soncially matched the Ulfberht L and R. It houses 4 6" drivers and 5 2" tweeters in an MTM array [3 way center]. Enjoy, William My subwoofer layout is also asymmetrical (1 Velodyne HGS 18) Donât let the one bother you....it only proves your system is well thought out. Multiple subs. can create their own set of problems. Youâre mains alone must already respond quite low as it is, I imagine. Bill
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Post by pedrocols on Mar 30, 2020 15:48:43 GMT -5
Stage 2: Back far wall treated. 12 more panels to hang! Leather couches are notorious for degrading the sound quality.
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Post by Deleted on Mar 30, 2020 16:46:48 GMT -5
Stage 2: Back far wall treated. 12 more panels to hang! Leather couches are notorious for degrading the sound quality. Non leather couches will never survive me cats. My cats aren't attracted to scratching the leather. In the past just from traffic they made short work of fabric. Thankfully they've learned from the end of a rod to not even approach the grill cloth of each tower. The couches are however a refuge for them to sleep on.
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Post by ttocs on Mar 30, 2020 17:18:14 GMT -5
Leather couches are notorious for degrading the sound quality. Non leather couches will never survive me cats. My cats aren't attracted to scratching the leather. In the past just from traffic they made short work of fabric. Thankfully they've learned from the end of a rod to not even approach the grill cloth of each tower. The couches are however a refuge for them to sleep on. Cats are great sound absorbers. They negate the effect of the leather.
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Post by creimes on Mar 30, 2020 21:16:54 GMT -5
Tell the wife you need to lay a shag rug across the dining room table In all seriousness congrats on the treatment additions, it made a completely world of difference in my room and mine are DIY so the cost was minimal Chad
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Post by dsonyay on Mar 31, 2020 10:16:01 GMT -5
A functional (useful) upgrade would be to install a big bookcase directly across the speakers (opposite wall). Something from ikea is economical.. then fill it will all sorts of stuff.., books, knick nacks, plants, etc. They are great diffusers for high freqs
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