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PostPosted: Tue Jan 03, 2017 6:48 pm 
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Location: Toronto, ON, CA
I will echo what others have said - you need to do some measurements and tweak both speaker position and listening position. Best to get a measurement mic (not expensive - Behringer is fine) and some sort of real time analyzer or software. Of course the final arbiter must be your ears but without measurements it's difficult to diagnose and treat the problem.


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PostPosted: Tue Jan 03, 2017 7:22 pm 
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Location: Brampton, ON, CA
kawihornet wrote:
Small wide room with wood floors -> now in the basement with carpet
Room is long now with drywall on walls drop ceiling. I have sound absorbers on the walls

-- 03 Jan 2017 01:50 --

As others have mentioned concrete floor can make a difference but not that much. You mentioned your walls are drywall so that wouldn't affect things and the absorbers aren't thick enough to make a difference in low bass but could affect upper bass ( you didn't mention specifically low bass). You can try placing speakers along side wall and your bass may return. It might be the pic but you room looks large for such small drivers so I wouldn't expect pant flapping. It is most likely a sum of different things and not just one. Larger room and placement within room is the likely culprit. In a previous life I worked with insulation and acoustics.


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PostPosted: Tue Jan 03, 2017 7:40 pm 
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Location: Ottawa, ON, CA
I have found over many years of many speakers and houses that best speaker is on a concrete floor.Pure sound dead without resonance like on a main floor wood framed home.
I do run full range larger Pro Tannoy 15 inch drivers (times 4sometimes)but they are not intended to play to college kid levels.
My home with hardwood floors is probably the worst acoustical enviroment possible.Romm treatments help but offer no acoustical insulation value at all.
This is at normal listeneing levels.

I am a professional commercial acoustic drywaller/framer and nothing beats a properly Roxul insulated ceiling in basement and drywalled 2 thicknesses of drywall but strapped to joists with sound metal resilient channel....if properly installed its like a bunker.

Every home and enviroment is different.Speaker placement everything.


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PostPosted: Tue Jan 03, 2017 7:57 pm 
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Location: Surrey , BC, CA
do you do sound channel between the two drywalls also?


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PostPosted: Wed Jan 04, 2017 6:53 am 
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Location: St.Catharines, ON, CA
Wasn't that bulkhead pictured going the other way in a previous post?
Anyway,if your L-shaped "room" just vents to the rest of the basement that's one giant bass trap.
Also single layer drywall on studs is a good bass absorber up to about 150-200 Hz.Might have to add another
layer of drywall to make a true wall.
You need to have 4 wall's to consider it a room and any wall's not backed by the basement concrete foundation
would benefit from extra layers of drywall to create a true wall acoustically.
Once that's done you can take care of the subtleties of fine tuning.

Gary


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PostPosted: Wed Jan 04, 2017 2:45 pm 
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sasquatch wrote:
Wasn't that bulkhead pictured going the other way in a previous post?
Anyway,if your L-shaped "room" just vents to the rest of the basement that's one giant bass trap.
Also single layer drywall on studs is a good bass absorber up to about 150-200 Hz.Might have to add another
layer of drywall to make a true wall.
You need to have 4 wall's to consider it a room and any wall's not backed by the basement concrete foundation
would benefit from extra layers of drywall to create a true wall acoustically.
Once that's done you can take care of the subtleties of fine tuning.

Gary


Yes it was...I have been trying everything and anything lol
Do you think the bulk head is still playing a part?

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PostPosted: Wed Jan 04, 2017 2:53 pm 
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Location: St.Catharines, ON, CA
kawihornet wrote:
sasquatch wrote:
Wasn't that bulkhead pictured going the other way in a previous post?
Anyway,if your L-shaped "room" just vents to the rest of the basement that's one giant bass trap.
Also single layer drywall on studs is a good bass absorber up to about 150-200 Hz.Might have to add another
layer of drywall to make a true wall.
You need to have 4 wall's to consider it a room and any wall's not backed by the basement concrete foundation
would benefit from extra layers of drywall to create a true wall acoustically.
Once that's done you can take care of the subtleties of fine tuning.

Gary


Yes it was...I have been trying everything and anything lol
Do you think the bulk head is still playing a part?

No


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PostPosted: Sat Jan 07, 2017 1:49 pm 
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kawihornet wrote:
Small wide room with wood floors -> now in the basement with carpet
Room is long now with drywall on walls drop ceiling. I have sound absorbers on the walls

-- 03 Jan 2017 01:50 --


Just an update. I found where the bass went lol but its stuck?
I positioned my speakers against the left wall and my listening chair directly under the
bulk head. The space in between the very rear wall and the bulk head is where all the bass is now (esp near the ceiling)
So lol what do I do now? sell the house and move? This is tempting to be honest lol

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PostPosted: Sat Jan 07, 2017 2:07 pm 
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Here are some more pics


Attachments:
IMG_3624.JPG
IMG_3624.JPG [ 303.93 KiB | Viewed 441 times ]
IMG_3623.JPG
IMG_3623.JPG [ 282.49 KiB | Viewed 441 times ]

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PostPosted: Sat Jan 07, 2017 2:46 pm 
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kawihornet wrote:
[
Just an update. I found where the bass went lol but its stuck?
I positioned my speakers against the left wall and my listening chair directly under the
bulk head. The space in between the very rear wall and the bulk head is where all the bass is now (esp near the ceiling)
So lol what do I do now? sell the house and move? This is tempting to be honest lol


Add subwoofers (at least 2, 3 is better) in the proper locations (not where the Lt/Rt speakers are) to improve the bass response at the listening position.


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PostPosted: Sat Jan 07, 2017 3:07 pm 
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Location: Toronto, ON, CA
kawihornet wrote:
kawihornet wrote:
Small wide room with wood floors -> now in the basement with carpet
Room is long now with drywall on walls drop ceiling. I have sound absorbers on the walls

-- 03 Jan 2017 01:50 --


Just an update. I found where the bass went lol but its stuck?
I positioned my speakers against the left wall and my listening chair directly under the
bulk head. The space in between the very rear wall and the bulk head is where all the bass is now (esp near the ceiling)
So lol what do I do now? sell the house and move? This is tempting to be honest lol


Bass trap(s) at the node you identified may work


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PostPosted: Sat Jan 07, 2017 3:25 pm 
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Location: Brandon, MB, CA
It may sound a little goofy but if you have some large cabinets or other furniture you could put back there it may help break that up.

-- 07 Jan 2017 23:25 --


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PostPosted: Sat Jan 07, 2017 3:45 pm 
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Location: St. John's, NL, CA
Bass up high between the bulkhead and the back wall? Easy, turn the speakers upside down! :mrgreen:

Would it be helpful to post a question here: http://tuneland.techno-zone.net


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PostPosted: Sat Jan 07, 2017 4:53 pm 
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I'm always amazed at how much more bass you can get by placement. It's the reflection of the bass wave and timing to hit you that's key. It's not rocket science its just moving air after all. :D

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