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Forum: Audio Theory, Setup, and Chat   04-13-2017, 03:36 AM
Replies: 14
Views: 314
Posted By Eyleron
I will try this, thanks! I have broadly absorbed...

I will try this, thanks! I have broadly absorbed all three speakers FRP before (poorly with purchased 2" panels whereas I know better now) but this would be more surgical.

Seems logical that it...
Forum: Audio Theory, Setup, and Chat   04-11-2017, 08:21 AM
Replies: 14
Views: 314
Posted By Eyleron
That's a good point. Overall I may have had an...

That's a good point. Overall I may have had an improvement. Maybe what was really two dips became one. I was looking at graphs unsmoothed, though.



I've tried to follow more prescriptive...
Forum: Audio Theory, Setup, and Chat   04-07-2017, 02:12 PM
Replies: 14
Views: 314
Posted By Eyleron
If i recall gearslutz VPR works on quite low...

If i recall gearslutz VPR works on quite low frequencies (around 50 Hz) and it has to be of at least a certain size to have an effect. And you report issues above 100 Hz area. Imo thats very common...
Forum: Speakers   03-23-2017, 09:15 AM
Replies: 19
Views: 194
Posted By Eyleron
5.1.2 You don't have room for surround-back...

5.1.2

You don't have room for surround-back speakers, because you don't have a "back" when your couch is against the wall.
Forum: Audio Theory, Setup, and Chat   03-21-2017, 06:26 PM
Replies: 14
Views: 314
Posted By Eyleron
Apes With Buttons

Interesting!


Yeah, that sure seems a lot easier. DanDan on GearSlutz seems pretty smitten a few years ago with uncovering why rear wall treatment (back of theater) seems to have a more marked...
Forum: Audio Theory, Setup, and Chat   03-21-2017, 01:44 PM
Replies: 14
Views: 314
Posted By Eyleron
Modal or SBIR: More Trapping Can Worsen Response?

I've been measuring in REW my center-and-sub, playing with time alignment, adding fluffy insulation around the speaker, trying to treat what I think might be SBIR. A roll of fluffy next to speaker,...
Forum: Speakers   03-16-2017, 05:53 PM
Replies: 37
Views: 777
Posted By Eyleron
That's true...it does seem like many of the...

That's true...it does seem like many of the better on-wall or in-walls are sometimes more expensive than free-standing. Not sure why...if it has a backer box it should be about the same material,...
Forum: Speakers   03-16-2017, 02:52 PM
Replies: 37
Views: 777
Posted By Eyleron
Maybe you're talking about specific models and...

Maybe you're talking about specific models and their propaganda? But if you're talking about in-wall, on-wall, free-standing in general, all things being equal...

Free-standing: the recommendation...
Forum: DIY Speakers and Subs   03-15-2017, 11:04 AM
Replies: 167
Views: 9,235
Posted By Eyleron
I thought that too in the other 615 build thread...

I thought that too in the other 615 build thread (avsforum.com/forum/155-diy-speakers-subs/2739601-diysg-titan-615-build-12.html#post51428777). But Matt pointed out that in "spirited listening...
Forum: Speakers   03-10-2017, 03:00 PM
Replies: 14
Views: 424
Posted By Eyleron
First, the amps shouldn't be making a difference,...

First, the amps shouldn't be making a difference, if they're used within their capabilities (not driven into clipping). They should amplify the input signal.
But maybe what the old amps were...
Forum: Speakers   03-09-2017, 05:11 PM
Replies: 16
Views: 309
Posted By Eyleron
You could use diffusion on the rear wall, and/or...

You could use diffusion on the rear wall, and/or absorption. Either can be covered in printed poster fabric (there are links to cheap services that do this) so it just looks like artwork.
...
Forum: Speakers   03-09-2017, 11:33 AM
Replies: 16
Views: 309
Posted By Eyleron
The first discrete channel surround sound was...

The first discrete channel surround sound was side surrounds. Many people call these "rears" as a holdover from Quadraphonic or some such in the 70's or 80's, but the 5.1 "surrounds" should be to the...
Forum: Speakers   03-09-2017, 09:32 AM
Replies: 16
Views: 309
Posted By Eyleron
Instead of forcing what are supposed to be...

Instead of forcing what are supposed to be surround-back speakers into a compromised position of "kind of behind but mostly above, in addition to the overhead Atmos speakers...", how about dropping...
Forum: Speakers   03-07-2017, 10:05 AM
Replies: 40
Views: 409
Posted By Eyleron
It was pointed out to me in another thread that...

It was pointed out to me in another thread that amp clipping will be more noticeable than speaker distortion, so, sure, if you clip or soft-clip the receiver...bad sound.
Forum: DIY Speakers and Subs   03-07-2017, 07:20 AM
Replies: 390
Views: 24,849
Posted By Eyleron
Hmm, I might have to look into if that's...

Hmm, I might have to look into if that's happening in my room.


True, but at the same time, look at how much more distortion is acceptable. "Look at how loud this gets at 18Hz and only 30%...
Forum: Speakers   03-06-2017, 06:08 PM
Replies: 40
Views: 409
Posted By Eyleron
The two aren't necessarily equivalent, because as...

The two aren't necessarily equivalent, because as you add power to the speaker, especially as a significant percentage of what it mechanically is intended to handle, distortion will get more...
Forum: DIY Speakers and Subs   03-06-2017, 10:06 AM
Replies: 390
Views: 24,849
Posted By Eyleron
Of course we all like to "open 'er up and she can...

Of course we all like to "open 'er up and she can do!"

But speakers distort much more than we realize or want to think about. Linear distortion gets a lot worse as you go from 1/10th power to 1/2...
Forum: Dedicated Theater Design & Construction   03-05-2017, 12:10 PM
Replies: 41
Views: 3,167
Posted By Eyleron
GearSlutz has many examples of DIY VPR absorbers...

GearSlutz has many examples of DIY VPR absorbers (1mm or 2.5mm steel plate that resonates at the desired freq to tame, with foam or some such behind to damp and spread the effect over more...
Forum: Speakers   03-05-2017, 09:54 AM
Replies: 982
Views: 134,502
Posted By Eyleron
Line Array Speakers

Point-source radiates as a sphere, where radius doubles (distance from speaker doubles) equals 4x the surface area, thus one-quarter the loudness (-6dB). ...
Forum: Speakers   03-04-2017, 02:18 PM
Replies: 982
Views: 134,502
Posted By Eyleron
Post Planar Ribbon: Wisdom Insight L8i

What? "Fragile ribbons" for high-spl speakers? Yup! A few companies make speakers that use thin film or foil diaphragm high frequency drivers that are high output. Planar ribbon/magnetic from BG...
Forum: DIY Speakers and Subs   03-02-2017, 02:19 PM
Replies: 468
Views: 41,437
Posted By Eyleron
Javs While your graphs look pretty good... ...

Javs

While your graphs look pretty good...

As others mentioned, many prefer a house curve with more bass.
HomeTheaterShack Wayne preferred house curve...
Forum: DIY Speakers and Subs   02-28-2017, 01:35 PM
Replies: 390
Views: 24,849
Posted By Eyleron
I'm interested in your impressions after you fix...

I'm interested in your impressions after you fix the SBIR peaks and dips. Might be another 5-10dB more mid-bass!
Forum: DIY Speakers and Subs   02-24-2017, 08:22 PM
Replies: 167
Views: 9,235
Posted By Eyleron
Yeah, BBC liked hardboard, Tim likes membrane,...

Yeah, BBC liked hardboard, Tim likes membrane, someone loosely hangs membrane, ugh. At least I found a link there to cheaper vinyl:...
Forum: DIY Speakers and Subs   02-24-2017, 06:13 PM
Replies: 167
Views: 9,235
Posted By Eyleron
Gearslutz membrane traps:...

Gearslutz membrane traps: https://www.gearslutz.com/board/bass-traps-acoustic-panels-foam-etc/743040-tims-limp-mass-bass-absorbers.html

Sent from my SM-G930V using Tapatalk
Forum: DIY Speakers and Subs   02-24-2017, 03:19 PM
Replies: 167
Views: 9,235
Posted By Eyleron
? Do you mean vendors offer free trials with free...

? Do you mean vendors offer free trials with free return shipping? Or to DIY some?
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