Previous Thread
Next Thread
Print Thread
Rate Thread
Page 49 of 89 1 2 47 48 49 50 51 88 89
Re: Lets plan a theater space
AAAA #414318 08/29/15 06:23 PM
Joined: Mar 2014
Posts: 1,593
Likes: 1
A
AAAA Offline OP
connoisseur
OP Offline
connoisseur
A
Joined: Mar 2014
Posts: 1,593
Likes: 1
Cranking away (slowly) on the to do list. Blinds installed. Electrical panel cover finished and mounted (my!cabinetry!skills!suck!)

The doors, the doors! (not- The Doors.) Don't you love 'em madly? I sure do. Turning out great. Still need to wrap the recessed parts in fabric, insert glass and cap with trim, but hey, been a while without doors, so I'm excited. The inside edges are getting weather stripping kits instead of Jambs. I have to install lapping weather stripping where they meet in the middle. We left a 1/4" gap to allow for this. Hope it works. Should help keep the sound in\out very well. I estimate the doors at approx 70lbs each pre-glass. Fat bitches (bottomed girls.)

Outside the room is a birch veneer with a "latte" water stain. Very french looking gate hardware.



Inside the room is a birch veneer with a "terracotta" water stain. The frames for the absorbers, screen wall trim, and poly diffusers will get the same stain.



Now to go clean the hurricane that is my garage!

Re: Lets plan a theater space
AAAA #414333 08/30/15 05:09 PM
Joined: Mar 2014
Posts: 1,593
Likes: 1
A
AAAA Offline OP
connoisseur
OP Offline
connoisseur
A
Joined: Mar 2014
Posts: 1,593
Likes: 1
We purchased an extra sheet of 1/8" birch veneer we put on the inside of the doors. Polys are now installed and waiting for filler to dry for sanding and touchups. I'm not sure how I'll be able to quantify the difference (likely small) they make. They sure look neat though.

Listening results once room is back together....


Re: Lets plan a theater space
AAAA #414335 08/30/15 07:15 PM
Joined: Aug 2004
Posts: 6,379
Likes: 7
axiomite
Offline
axiomite
Joined: Aug 2004
Posts: 6,379
Likes: 7
OK, now *that* is clever.

Do you have some damping material behind the veneer ?

Last edited by bridgman; 08/30/15 07:16 PM.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8
Re: Lets plan a theater space
AAAA #414337 08/30/15 07:43 PM
Joined: Mar 2014
Posts: 1,593
Likes: 1
A
AAAA Offline OP
connoisseur
OP Offline
connoisseur
A
Joined: Mar 2014
Posts: 1,593
Likes: 1
Cant take credit for it. smile here's the recipe.

https://www.gearslutz.com/board/attachme...poly-panels.pdf

I havent put anything behind them yet. Going to wait and see what the absorbers do first. They are next up.

The new response plot isnt really anything revelatory, as expected. The combination of the doors on the room and polys has made the room sound "worse". I think its the doors just holding energy in the room more and not a lot of absorbtion yet. Dont get me wrong, it doesn't sound bad, just not as defined as before. I wonder if the rt60 went up. Should test.

Re: Lets plan a theater space
AAAA #414371 09/03/15 09:56 PM
Joined: Mar 2014
Posts: 1,593
Likes: 1
A
AAAA Offline OP
connoisseur
OP Offline
connoisseur
A
Joined: Mar 2014
Posts: 1,593
Likes: 1
After tweaking stuff a little more, cutting the bass a few db, putting spikes on speakers and finalizing their position listening for a while to test tracks I use, I think the room is getting into pretty good shape.

The ETC (impulse) plots are nearly identical from left to right channels. The rt60 is high-ish still, but no noticable room echo or ring (thanks in no small part to the polys grin). Well worth the < $60 and time staining and installing.

It is unfair to show a comparison plot between the before and after poly install. Too many variables have changed. What I can say is they seem to offer "air" or smoothing in the high/extended treble ranges. The response plot shows an increase above 4khz right to 8khz of about 5 db. This is great! My speakers are no Axioms...... Their off axis response is kinda ugly. I can only magine what can be accomplished with an Axiom setup.

This is with front corner traps, polys, screen and "good" speaker positioning. I say good because they are toed in to sound like a singer is on a barstool in front of me in the mlp.

Interestingly enough, moving to the next seat over in either direction yields pretty much the same results. Not exact, but the trends are similar over the mid to high frequencies. Bass is almost identical from chair to chair. I attribute this to setting up the row of seating following room mode avoidance rules.

I'm hoping the absorber panels will start to flatten the region below 400Hz or so. This stuff is cool! any predictions? I'm hoping Nick isn't right and I have to redo the front corner traps. Historically..... he's usually right. Lol. I may cover the absorbers right off with 6mil vapour barrier to focus on lower frequencies only. We'll see.

Anyways here we go so far. 1/12th octave scale. Pink noise averaged, yadda yadda yadda.



Last edited by Serenity_Now; 09/03/15 10:06 PM.
Re: Lets plan a theater space
AAAA #414385 09/05/15 08:21 PM
Joined: Mar 2014
Posts: 1,593
Likes: 1
A
AAAA Offline OP
connoisseur
OP Offline
connoisseur
A
Joined: Mar 2014
Posts: 1,593
Likes: 1



Re: Lets plan a theater space
AAAA #414387 09/06/15 11:10 AM
Joined: Mar 2014
Posts: 1,593
Likes: 1
A
AAAA Offline OP
connoisseur
OP Offline
connoisseur
A
Joined: Mar 2014
Posts: 1,593
Likes: 1
Had to run to dinner but thought I'd get a pic up before I forgot and got onto something else. This is an N23 QRD diffuser. It still needs fins and assembly. Its supposed to diffuse down to 450Hz and scatter down to 230Hz IIRC. It was calculated with the QRDude software available online.

The deepest well is 9 11/16" and it is just over 6' wide and 37" tall. They are styrofoam blocks salvaged from a construction site garbage pile. One mans trash....

I plan on using it on the front wall behind the screen. My hope is it will help eliminate the center channel boxiness/echo (still havent pinned that down, as some material has no issue) mid bass response slightly and most importantly, make it sound like there is no front wall behind the screen. I've always tried to connect people's descriptions of the qrd's spacious effect with a use that can apply to our visual perception. One day in the shower, where my aha moments happen, I decided behind the screen might make the image sound like it has deepth. Kind of like a theatrical stage more than a flat screen. See how it works I guess. Always wanted to make one.

Re: Lets plan a theater space
AAAA #414393 09/06/15 11:44 PM
Joined: Mar 2014
Posts: 1,593
Likes: 1
A
AAAA Offline OP
connoisseur
OP Offline
connoisseur
A
Joined: Mar 2014
Posts: 1,593
Likes: 1
Doors almost finished. Need weather stripping kits.


Re: Lets plan a theater space
AAAA #414394 09/06/15 11:45 PM
Joined: Mar 2014
Posts: 1,593
Likes: 1
A
AAAA Offline OP
connoisseur
OP Offline
connoisseur
A
Joined: Mar 2014
Posts: 1,593
Likes: 1
Thank goodness for good help.


Re: Lets plan a theater space
AAAA #414398 09/07/15 11:51 PM
Joined: Mar 2014
Posts: 1,593
Likes: 1
A
AAAA Offline OP
connoisseur
OP Offline
connoisseur
A
Joined: Mar 2014
Posts: 1,593
Likes: 1
Busy weekend. Lots accomplished. Probably pushing too hard, and I'm making mistakes. Today I started cutting the mdf and planking down to make the absorber frames. 3 of 4 assembled before I borked it!

First mistake, bought just enough material to build 4 frames. Second mistake, cut 2 of the 45 degree corners backwards and now I'm short material. Buying "select" stain grade lumber adds up when you make mistakes.... Doh! At least its only pine.

I also went into auto pilot mode and built the mdf inner frames to fit a batt of roxul exactly..... Instead of going a batt and a half wide as originally planned. Doh! Should work out fine and look ok. Was on the third of 4 frames when I noticed.

What can ya do! My talented helper wasn't around to babysit today. Lol. blush

Page 49 of 89 1 2 47 48 49 50 51 88 89

Moderated by  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Link Copied to Clipboard

Need Help Graphic

Forum Statistics
Forums16
Topics24,940
Posts442,457
Members15,616
Most Online2,082
Jan 22nd, 2020
Top Posters
Ken.C 18,044
pmbuko 16,441
SirQuack 13,840
CV 12,077
MarkSJohnson 11,458
Who's Online Now
0 members (), 402 guests, and 3 robots.
Key: Admin, Global Mod, Mod
Newsletter Signup
Powered by UBB.threads™ PHP Forum Software 7.7.4