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Forum: Audio theory, Setup and Chat   08-31-2014, 02:49 PM
Replies: 48
Views: 1,317
Posted By Ivan Beaver
Sorry-here it is ...

Sorry-here it is

http://www.dbaudioandvideo.com/files/resource/loudspeaker_placement_rev041021.pdf
Forum: Audio theory, Setup and Chat   08-28-2014, 10:21 AM
Replies: 21
Views: 508
Posted By Ivan Beaver
A "line array" has no control over the horizontal...

A "line array" has no control over the horizontal pattern-they pretty much just "spray" everywhere-so you will have lots of interaction with the walls.

The ceiling depends on the size of the...
Forum: Audio theory, Setup and Chat   08-28-2014, 10:08 AM
Replies: 48
Views: 1,317
Posted By Ivan Beaver
I forgot to attach a paper that I wrote about ten...

I forgot to attach a paper that I wrote about ten years ago.

It gets into combfiltering a little bit with some measurements and predictions etc.
Forum: Audio theory, Setup and Chat   08-28-2014, 10:05 AM
Replies: 48
Views: 1,317
Posted By Ivan Beaver
It is NOT the center to center spacing that...

It is NOT the center to center spacing that affects what freq will have combfiltering.

It is the distance from each source TO THE LISTENER that make the comb filters appear where they do.

The...
Forum: Audio theory, Setup and Chat   08-27-2014, 05:55 PM
Replies: 21
Views: 508
Posted By Ivan Beaver
I see no case in which a "line array" would offer...

I see no case in which a "line array" would offer ANY advantage (other than in the looks department and for guys that want a "lying array"-for whatever reason) in a home theatre situation.

A well...
Forum: Audio theory, Setup and Chat   08-26-2014, 10:06 AM
Replies: 21
Views: 508
Posted By Ivan Beaver
Reflections do all sorts of weird things. ...

Reflections do all sorts of weird things. Depending on the freq and the distance between the reflection path and the direct sound path, you can get addition (just a few dB) or complete cancellation....
Forum: Audio theory, Setup and Chat   08-25-2014, 09:10 AM
Replies: 5
Views: 194
Posted By Ivan Beaver
If you are not going for accuracy-then all bets...

If you are not going for accuracy-then all bets are off as to what/how you should adjust it.

So I would simply "play with the controls" until you get a sound YOU like.

Of course others may not...
Forum: Audio theory, Setup and Chat   08-24-2014, 05:55 PM
Replies: 21
Views: 508
Posted By Ivan Beaver
There is no "dB per foot" attenuation. Rather it...

There is no "dB per foot" attenuation. Rather it is known as "inverse square law" and is the distance between the ratio of 2 distances.

Basically this states that when you double the distance-you...
Forum: DIY Speakers and Subs   08-16-2014, 04:09 PM
Replies: 8
Views: 370
Posted By Ivan Beaver
What exactly are you trying to do? Have only...

What exactly are you trying to do?

Have only 1 speaker of any zone on-or be able to combine any number or all of them?

Is is mono or stereo?

What is the wattage of the speakers in use?
...
Forum: DIY Speakers and Subs   08-16-2014, 04:06 PM
Replies: 11
Views: 330
Posted By Ivan Beaver
What kind of 90° are you talking about? Is...

What kind of 90° are you talking about?

Is it on the edge or on the dimension of a piece?

Lets say you want a piece that is 24" x16"x3/4" thick. Is the 90° on the 3/4" side or the 24x16...
Forum: Speakers   08-03-2014, 05:23 PM
Replies: 20
Views: 498
Posted By Ivan Beaver
Sorry I missed this thread-but I have been really...

Sorry I missed this thread-but I have been really busy lately.

For a HT I would choose the Sh50s (or SH60s if you need a wider pattern) any day over the SH64s.

While the SH64s will get much...
Forum: Audio theory, Setup and Chat   07-18-2014, 04:50 AM
Replies: 12
Views: 345
Posted By Ivan Beaver
Not exactly Assuming the following-1: All...

Not exactly

Assuming the following-1: All cabinets are the same and driven at the same level with the same signal.
2: All cabinets are within 1/4 wavelength at the highest freq of interest.
3:...
Forum: DIY Speakers and Subs   05-05-2014, 03:44 AM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by chrapladm http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/390#post_24682982)

Ivan if someone makes a Synergy horn...
Forum: DIY Speakers and Subs   05-04-2014, 04:03 PM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by audiovideoholic http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/390#post_24682459)



But, what I took from Ivan's...
Forum: DIY Speakers and Subs   05-04-2014, 12:05 PM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
The "thing" about the synergy horn is that it is...

The "thing" about the synergy horn is that it is not one or two "things" that make it work.

It is a combination of a lot of smaller things all added together.

For example-we have one of his...
Forum: DIY Speakers and Subs   05-03-2014, 03:20 PM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by Gooddoc http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/360#post_24678242)

Ivan, for typical multidriver cabs there...
Forum: DIY Speakers and Subs   05-02-2014, 04:56 PM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by audiovideoholic http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/360#post_24675873)

Good info! I've wondered this...
Forum: DIY Speakers and Subs   05-02-2014, 10:48 AM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by Gooddoc http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/330#post_24671498)

Got motivated and did some outdoor FR...
Forum: DIY Speakers and Subs   04-30-2014, 02:06 PM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by Gooddoc http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/330#post_24666817)

Ah, yes, diminishing returns. No doubt! I...
Forum: DIY Speakers and Subs   04-30-2014, 02:02 PM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by Gooddoc http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/300#post_24666472)

Ah, cr@p. They look amazing. The writing...
Forum: DIY Speakers and Subs   04-30-2014, 10:06 AM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Here is a SH50 in piano gloss black ...

Here is a SH50 in piano gloss black
http://www.avsforum.com/content/type/61/id/423104/width/500/height/700/flags/LL (http://www.avsforum.com/content/type/61/id/423104/)
Forum: DIY Speakers and Subs   04-30-2014, 09:30 AM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by Gooddoc http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/300#post_24665183)

I would love to see those photos. If I...
Forum: DIY Speakers and Subs   04-30-2014, 04:59 AM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by chrapladm http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/300#post_24664537)

Must go to DSL HQ. Then you can listen...
Forum: DIY Speakers and Subs   04-30-2014, 04:54 AM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by audiovideoholic http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/300#post_24664508)

Was counting on your attempts...
Forum: DIY Speakers and Subs   04-30-2014, 04:47 AM
Replies: 439
Views: 20,914
Posted By Ivan Beaver
Quote:Originally Posted by...

Quote:Originally Posted by Gooddoc http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1527862/diy-danley-noesis/300#post_24663966)

No, I haven't. If I go veneered I wonder...
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