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Forum: Receivers, Amps, and Processors   08-29-2014, 06:18 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
Exactly. Yes. That's why the "advice" to aim...

Exactly.

Yes. That's why the "advice" to aim them straight down does not light my fuse. Looking forward to getting some clarity at CEDIA.

:)
Forum: Receivers, Amps, and Processors   08-29-2014, 04:07 PM
Replies: 160
Views: 7,357
Posted By Roger Dressler
Just a note. I changed my post from 1/3 to 1...

Just a note. I changed my post from 1/3 to 1 octave for the >200 Hz pass. This will work better. Sorry for my error.
Forum: Receivers, Amps, and Processors   08-29-2014, 01:57 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
I would. That's just me. And what's nice about...

I would. That's just me. And what's nice about round is, they can be rotated to see if that as some nice effect.
Forum: Receivers, Amps, and Processors   08-29-2014, 01:06 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
To make a speaker less localizable by aiming,...

To make a speaker less localizable by aiming, they will have to direct significant energy to other surfaces relative to the direct path. Hence the idea of diploes/tripoles. To me that's a better...
Forum: Ultra Hi-End HT Gear ($20,000+)   08-28-2014, 11:03 PM
Replies: 605
Views: 24,141
Posted By Roger Dressler
^^ I just want to confirm that the "hot spot"...

^^ I just want to confirm that the "hot spot" issue I describe for cinemas is not an issue for concern in home Atmos systems. No more than with conventional surround formats, anyway.
Forum: Receivers, Amps, and Processors   08-28-2014, 05:25 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
I'm not sure that's how it's supposed to look. ...

I'm not sure that's how it's supposed to look. But that's how it looks in my cramped quarters. :)
Forum: Receivers, Amps, and Processors   08-28-2014, 09:24 AM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
Oh, I see what you mean. Yes, and that's why...

Oh, I see what you mean. Yes, and that's why pointing them down is probably not the best idea. Yet that's the Dolby demo... the demo to show how well the upfiring speakers work. :rolleyes:
Forum: Receivers, Amps, and Processors   08-28-2014, 12:43 AM
Replies: 160
Views: 7,357
Posted By Roger Dressler
Hi David, Just for the record, I did not say...

Hi David,

Just for the record, I did not say you were doing it wrong. :) Even with REW you have the option to control the filter Q by setting the smoothing before asking REW to create filters.
...
Forum: Receivers, Amps, and Processors   08-27-2014, 10:00 PM
Replies: 160
Views: 7,357
Posted By Roger Dressler
This is my understanding of the Harman ARCOS...

This is my understanding of the Harman ARCOS strategy. It works for me.

Take the measured response (either single position but might be better to average a small cluster) and set the smoothing to...
Forum: Receivers, Amps, and Processors   08-27-2014, 09:38 PM
Replies: 447
Views: 34,660
Posted By Roger Dressler
I thought we were talking about the digital...

I thought we were talking about the digital outputs on the Trinnov Altitude. It has EQ in it already, and it is not limited to 48k 16-bit.
Forum: Receivers, Amps, and Processors   08-27-2014, 09:27 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
What do you do for current 5.1/7.1? There's only...

What do you do for current 5.1/7.1? There's only one MLP.

Could you be more specific? Which positions fall out?
Forum: Receivers, Amps, and Processors   08-27-2014, 09:22 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
What do you do for current 5.1/7.1? There's only...

What do you do for current 5.1/7.1? There's only one MLP.

Could you be more specific? Which positions fall out?
Forum: Receivers, Amps, and Processors   08-27-2014, 04:47 PM
Replies: 160
Views: 7,357
Posted By Roger Dressler
If 10 is not enough, perhaps a different strategy...

If 10 is not enough, perhaps a different strategy is needed. I only have 5 per channel and am fully satisfied. Are you using REW to determine the filters, or how?
Forum: Receivers, Amps, and Processors   08-27-2014, 04:37 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
I'm doing a 2 row setup, and to best emulate the...

I'm doing a 2 row setup, and to best emulate the performance of a real Atmos cinema, the folks in the back row definitely get a different aural perspective! :rolleyes: IOW, no, both rows do not fall...
Forum: Receivers, Amps, and Processors   08-27-2014, 12:41 AM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
Yes. In a cinema, when a side surround array...

Yes. In a cinema, when a side surround array outputs, say, 90 dB SPL (as measured at the center of the audience), it is the combination of some 6+ speakers all working together, each one outputting...
Forum: Receivers, Amps, and Processors   08-26-2014, 09:56 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
How did the TAD's...

How did the TAD's (http://www.theabsolutesound.com/articles/tad-reference-one-loudspeaker-tas-218-1/) avoid it?
Forum: Speakers   08-26-2014, 05:26 PM
Replies: 1,464
Views: 126,919
Posted By Roger Dressler
Agreed. The output impedance of the...

Agreed.

The output impedance of the amplifier scarcely affects the heat dissipated in the output stage. Even if the equivalent source resistance were zero it would get just as hot to the touch.
Forum: Speakers   08-26-2014, 01:28 PM
Replies: 1,464
Views: 126,919
Posted By Roger Dressler
Controlling the speaker cone (a low source...

Controlling the speaker cone (a low source impedance) is independent of the power supply capability, and of the games amp makers may play regarding spec'ing the 8 ohm vs 4 ohm output. If Naim...
Forum: Receivers, Amps, and Processors   08-26-2014, 10:00 AM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
Understood. The cinema must not diminish the...

Understood.

The cinema must not diminish the performance for 5.1/7.1 content. Lowering the surrounds impacts that, but also makes it even more of an issue for nearby seats when smaller subsets of...
Forum: Receivers, Amps, and Processors   08-25-2014, 10:56 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
There may be those among us who are conflicted in...

There may be those among us who are conflicted in how to straddle the conflicting requirements of 5.1 and 7.1 playback wrt placement of the side surrounds. Move them to 90 deg for optimal 7.1 or...
Forum: Receivers, Amps, and Processors   08-25-2014, 07:17 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
The surrounds are not being lowered in cinemas,...

The surrounds are not being lowered in cinemas, so I see no reason to lower them at home if within the normal range.

"What happens in demos stays in demos," to torture the saying. I suspect...
Forum: Receivers, Amps, and Processors   08-25-2014, 04:40 PM
Replies: 447
Views: 34,660
Posted By Roger Dressler
You mean with "surround processed" audio (as...

You mean with "surround processed" audio (as opposed to just baseband decoded audio as already supported)? What would one do with that?
Forum: Receivers, Amps, and Processors   08-24-2014, 10:27 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
When I moved to San Antonio in 1980, Bjorn was...

When I moved to San Antonio in 1980, Bjorn was already "at it" doing demos of high fidelity sound with projection video, playing surrounds through a time delay device. This was at least 2 years...
Forum: Receivers, Amps, and Processors   08-24-2014, 10:15 PM
Replies: 5,908
Views: 202,289
Posted By Roger Dressler
I'd like to know more about the geometry that...

I'd like to know more about the geometry that causes this notch. There's no mention of that here...
Forum: Receivers, Amps, and Processors   08-24-2014, 09:57 PM
Replies: 5,852
Views: 509,965
Posted By Roger Dressler
You do not need to make new configs to do this....

You do not need to make new configs to do this. Just go to:
>system setup
>input
>fave processing. Here you can set the default to stereo, surround , etc.
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