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Post by prashanthgnair on Feb 7, 2017 2:30:49 GMT
Hi everyone, i got my roxul sl930 shipped in today. planning to make 2x4 panels of 4mm thickness for reflection panels and doubling it for corner bass traps, also triangle corner traps. my room is weird shaped, ive pasted a picture below with measurement. trying to put panels on the doors, but have an issiue with the back door which opens into the room, so if i install a panel on it i wont be able to open the door. confused on what to do. also please advise approximately where i should place the panels in the room.
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Post by Hexspa on Feb 7, 2017 12:57:32 GMT
I hope you mean 4in and not 4mm or even 40mm. 4" minimum for RFZ.
I've looked at your drawing. I'd say fill that 5' enclave with 24" fluffy insulation with an air gap behind. You can then face it, set your LP 38% from there and still have almost 10ft behind you, some symmetry plus lots of bonus bass trapping.
I'd wait for a second opinion though before spending money. Typically you'd want to put that much insulation behind you. However, you have a kitchen on the other end plus a door.
It would be better if you could flip the orientation and remove the kitchen, replacing it with insulation but I doubt that's going to happen.
-m
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Post by prashanthgnair on Feb 7, 2017 13:57:39 GMT
It is 4inches. The 5ft pocket is the boundary of the room. The pocket acts as a closet for another room. Kitchen is already installed, can't move it. What do you think of keeping one panel on each door? The only concern with that is, one for opens insideš£
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Post by Hexspa on Feb 7, 2017 21:01:04 GMT
Hey prash. I downloaded your image and flipped it around a bit to try and get a better perspective. BTW, when I said "pocket" I meant where your entertainment system currently is located. From here on out, that section will be called "the pocket". So I think you can set up your studio where the TV is. Alternatively you can face the right wall, centered 14.74' (or maybe off a few inches). This will give you symmetry ahead of you between your head and speakers plus a nice window out of which you can gaze - the window will not affect your acoustics as much there either. Additionally, if you're going to continue to use a surround system, the window-facing configuration will allow for better positioning of your satellites. You will not have to treat your left and right RFZ points since they'll be further than 10' away (walls further than 10' are not early reflection points. You will simply have to place movable panels or soffits behind you - no problem. This will also give you more flexibility when treating your vertical corners. You'll just need to hang a cloud array if your ceiling is less than 10'. Remember that surround satellites get clouds too. If you haven't, please consider downloading my free ebook at hexspa.com/listening-room-ebook It's a condensed version of whatever I've learned up until I'd written it. It's not endorsed by anyone per se but I've gotten verifiable results several times with that information. The last thing I'll mention is that, truly, the only way to find the ideal location for your LP et al. is to measure with a linear omni condenser and Room EQ Wizard-type software. This will require trial and error but will give you hard evidence as opposed to the possibly maybes you can get from anyone without that data. Of course, I wouldn't be surprised if someone like Ethan has assisted with a similar space and could make an accurate prediction. Even still some things might pop up that graphs can help you diagnose. Additionally - typically the advice is to fire lengthwise down a room. Again, this is where REW etc. will help. The thing is with setting up a room is that there are many factors and steps to consider. Few people score 10/10 - I don't - and that's ok. The name of the game is doing the best with what you got. You get bonus points for continuing to experiment, measure and refine. Thanks, -m
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Post by prashanthgnair on Feb 7, 2017 22:07:10 GMT
Thank you hexpa. Great info. Thank you
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Post by prashanthgnair on Feb 8, 2017 22:15:41 GMT
1. Can i place 4ft x 2ft x 4inch (2pcs)stacked one panel top of the other to get 8ft tall, on the corner (45 deg)for the whole height of the room? Or should i use one panel of 8inch and use tri corner?
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Post by Hexspa on Feb 9, 2017 13:02:23 GMT
By tri corner do you mean cutting up your boards and stacking them like a super chunk? If yes then yes. The problem is you use a lot of material - perhaps not most efficiently. That's why people use pink fluffy for corners. Regarding stacking them the answer is of course. In fact it's recommended. You can do whatever you want, really. There are guidelines but you'll have to experiment to see what gives you the best result. Corners get either angled panels (full length if possible) or soffit/super chunks typically with fluffy. You can also put fluffy behind your angled panels (not your cat, the insulation ) Corners, RFZ, real wall, modes. Corners, RFZ, rear wall, modes. That's the mantra. Diffusion is after enlightenment. -m
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Post by prashanthgnair on Feb 9, 2017 14:38:51 GMT
Thank you hexspa
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Post by prashanthgnair on Feb 20, 2017 7:44:47 GMT
I installed 1.Front corners (floor to cieling 8inch panel kept square) 2.4x2ft corner on top of the tv 3. One 4x2 behind the center channel speaker 4. One 4x2 panel for each behind left and right speaker 5. One 2x4 at the corner of pocket.
Not installed cieling clouds ( one for each front (right left and center)) and planning to put two 4x2 on top of the couch Two wall hanging panels on each sides for first relections of left and right channels.
I ran a test to plant the couch, tried with the 38% seating. The bass is not good if i sit on the couch, but if i stand it gets better. It gets even better if i stand close to the walls..
What should i do. Please advise.
I didnt install the reflection clouds and wall panels cause i didnt confirm the couch position.
I have pictures of the project. Can i upload the same?
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Post by Hexspa on Feb 20, 2017 23:02:00 GMT
I think pics are in order.
Ethan requested that they remain under 100KB so you might need to shrink them.
I think to find your best listening position you should do a REW measurement rather than rely [edit:exclusively] on your ears.
It's no different from any other art where senses and tools must come together to reach the best result.
Straight lines are not always the most desirable.
The right colors might not work.
38% might not be the best LP.
Congrats on making the leap.
-m
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Post by Hexspa on Feb 26, 2017 10:13:48 GMT
Hey, Prash. What's going on with this room?
-m
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Post by prashanthgnair on Mar 5, 2017 6:15:49 GMT
ive done it at last. attaching some pictures, pls suggest any corrections.
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Post by Hexspa on Mar 5, 2017 9:21:07 GMT
Looks great. Did you make your whole front wall absorptive?
I've never seen a room with so many doors!
You've got a lot of space where more absorption can be deployed.
I think you're off to a great start and, if you've never used acoustic absorption before, I imagine you're appreciating the improvement to your room's sound.
My biggest question is whether you have your RFZ fully accounted for. My second comment would be about the beige panel flat against the wall next to the angled one. That panel might be better placed angled under the other one. I know they won't be flush but corner placement is more effective, as shown in limited personal tests, than flush mount without air gap. My third comment is related and that is if you can gap your "flat" panels some more that would likely help. Fourth, I see a cloud on your ceiling in the first picture. Then there's two more ceiling absorbers in the foreground. Then, in the second picture there are two in the foreground and two in the back. Are those foreground panels the same? I think their location is ok but if you either don't have your RFZ fully treated or would find it acceptable to cover more corners then I would probably put them in those locations. Then again I realize those could be functioning as your rear speaker's ceiling RFZ.
Anyway the room looks impressive. I applaud your efforts in overcoming the room's unique challenges. Let us know your thought process and post REW if you can.
-m
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Post by prashanthgnair on Mar 5, 2017 16:12:38 GMT
All the panels(4inch thick) have 2inch air gap vehind and ive kept an inch spacer too before flush mounting.. Foreground im not sure how to cover the corners. Cause doors are there. Thats why i hung it up from the cueling with an angle. Planning to fill the pocket above kitchen cabinet...
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