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Forum: DIY Speakers and Subs   10-03-2014, 11:17 AM
Replies: 40
Views: 884
Posted By omholt
Can we stick to the topic and what I'm actually...

Can we stick to the topic and what I'm actually asking about?

And for those of you I haven't answered, you ask questions that was answered in my first post or suggest something I'm already doing.
Forum: DIY Speakers and Subs   10-03-2014, 12:02 AM
Replies: 40
Views: 884
Posted By omholt
Yes. I meant a horn with a 15". Here's a...

Yes. I meant a horn with a 15". Here's a simulation of Hyperbolic horn. I believe it's 100 cm deep. The bottom graph is a single with JBL 2220B and top a dual. A single has the perfect matching...
Forum: DIY Speakers and Subs   10-02-2014, 11:02 PM
Replies: 40
Views: 884
Posted By omholt
Thanks for replying Bill. I agree when it comes...

Thanks for replying Bill. I agree when it comes to capacity and deep bass a dual horn like the picture shows has no advantages. However, the designer speaker of a more even response and using the...
Forum: DIY Speakers and Subs   10-02-2014, 12:17 AM
Replies: 40
Views: 884
Posted By omholt
I haven't studied synergy horns much but highly...

I haven't studied synergy horns much but highly doubt it's a simple as that if the goal is something of high quality. The ideal contour of a synergy horn would probably be completely different then...
Forum: DIY Speakers and Subs   10-01-2014, 02:33 PM
Replies: 40
Views: 884
Posted By omholt
Are you sure the same width wil automatically...

Are you sure the same width wil automatically give the same directivity?

Side by side and have lobes in both planes? Doesn't seem like a good idea.
Forum: DIY Speakers and Subs   10-01-2014, 11:08 AM
Replies: 40
Views: 884
Posted By omholt
Best midbass horn and question about lobing

I want to get a midbass horn for the area 600-80 Hz (approximately). Will use subs below 120-80 Hz. I use an active cross over and can time align. My present top horn is a Klipsch K-402, at the...
Forum: Digital Projectors - Under $3,000 USD MSRP   08-09-2014, 09:17 AM
Replies: 681
Views: 130,204
Posted By omholt
I bought a used HW15 recently. I was wondering if...

I bought a used HW15 recently. I was wondering if anyone can give some tips regarding calibration and settings. I understand a projector is best calibrated individually in the room, but I assume...
Forum: Ultra Hi-End HT Gear ($20,000+)   05-02-2014, 12:00 AM
Replies: 217
Views: 15,646
Posted By omholt
I have surround working now with my Lynx Two-B...

I have surround working now with my Lynx Two-B soundcard. Still a lot of things and settings I'm wondering about but at least it's working. The nice thing about Lynx Two-B which I didn't know before...
Forum: 2.35:1 Constant Image Height Chat   04-24-2014, 12:48 AM
Replies: 13
Views: 640
Posted By omholt
I ended up ordering a 98" 2.40 Screen Excellence...

I ended up ordering a 98" 2.40 Screen Excellence 4K fixed screen. I could have maybe gotten 104" but considering that chance of changing to other speakers and thus having to place the screen closer...
Forum: 2.35:1 Constant Image Height Chat   04-21-2014, 02:26 PM
Replies: 13
Views: 640
Posted By omholt
Excellent guys. This is very helpful. A 98"...

Excellent guys. This is very helpful. A 98" Screen Excellence fixed 2.35 screen shouldn't be a problem for me then and I might even consider 104".
Forum: 2.35:1 Constant Image Height Chat   04-20-2014, 11:20 PM
Replies: 13
Views: 640
Posted By omholt
Quote:Originally Posted by...

Quote:Originally Posted by chrisreeves http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1528234/do-we-tolerate-bigger-screens-for-2-35-then-16-9#post_24628752)

I find a...
Forum: 2.35:1 Constant Image Height Chat   04-20-2014, 02:01 PM
Replies: 13
Views: 640
Posted By omholt
I'm about to purchase a Screen Excellence 4K...

I'm about to purchase a Screen Excellence 4K fixed screen in 2.35 or 2.40 format. I'm uncertain about the size. Distance from eyes to the screen is approximately 9,1 feet (2,8 m). I know from...
Forum: Screens   04-01-2014, 10:05 AM
Replies: 6
Views: 359
Posted By omholt
Quote:Originally Posted by...

Quote:Originally Posted by iolmaster http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1524983/why-are-motorized-sound-transparent-screens-so-expensive#post_24548755)

What...
Forum: Community News & Polls   03-30-2014, 02:36 PM
Replies: 286
Views: 14,806
Posted By omholt
More speakers are great for the vendors..... ...

More speakers are great for the vendors.....

What we in reality need are rooms that are better acoustically treated and speakers that are both better (in terms of power response) and has a...
Forum: Screens   03-30-2014, 09:53 AM
Replies: 6
Views: 359
Posted By omholt
Thanks Selden. Ripples in the surface doesn't...

Thanks Selden.
Ripples in the surface doesn't tempting but I guess it depends how bad it is.

Is it possible to get Screen Research ClearPix 4K in a manual pull-up? Or Screen Excellense Enlightor...
Forum: Screens   03-30-2014, 07:19 AM
Replies: 6
Views: 359
Posted By omholt
I'm looking for a good quality sound transparent...

I'm looking for a good quality sound transparent screen and motorized would be preferred. They all seem to be encredible expensive. Is there something I've missed or is simply this the case?
Forum: DIY Speakers and Subs   02-02-2014, 12:00 AM
Replies: 128
Views: 11,020
Posted By omholt
I wish there was a polar response of the...

I wish there was a polar response of the Gamechanger.
Forum: DIY Speakers and Subs   02-01-2014, 06:58 AM
Replies: 128
Views: 11,020
Posted By omholt
Just in case. CBT isn't the same as a...

Just in case.
CBT isn't the same as a line-array. Read Don Keele's papers. A regular line-array has a lot of flaws and not something I would recommend. It's called CBT (constant beamwidt...
Forum: DIY Speakers and Subs   02-01-2014, 12:25 AM
Replies: 128
Views: 11,020
Posted By omholt
A waveguide even at a size of 15" has wide and...

A waveguide even at a size of 15" has wide and no controlled directivity below 1000-800 Hz and it beams in the highs. To call that a better directivity is a misunderstanding IMO. The result is...
Forum: DIY Speakers and Subs   01-30-2014, 04:53 AM
Replies: 128
Views: 11,020
Posted By omholt
Quote:Originally Posted by...

Quote:Originally Posted by Martycool007 http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1370612/cbt36-array/90#post_24286342)

Perhaps the CBT has better vertical...
Forum: DIY Speakers and Subs   01-30-2014, 12:04 AM
Replies: 128
Views: 11,020
Posted By omholt
WG system? You mean waveguide? A waveguide...

WG system? You mean waveguide?
A waveguide doesn't have a particular well controlled vertical directivity from what I've seen. Besides, I've never seen a waveguide has CD lower then 800 Hz....
Forum: DIY Speakers and Subs   01-29-2014, 02:58 PM
Replies: 128
Views: 11,020
Posted By omholt
Ok. I see. With the CBT you avoid vertical...

Ok. I see. With the CBT you avoid vertical reflections to a large degree but have more sidewall reflections as oppose to a horn speaker with constant directivity low in frequency. Overall, one has...
Forum: DIY Speakers and Subs   01-29-2014, 12:36 AM
Replies: 128
Views: 11,020
Posted By omholt
That's a huge CBT speaker. Very cool. It's the...

That's a huge CBT speaker. Very cool. It's the perfect speaker to cover a large crowd.
Dealing with flutter echo is also an advantage though. Using RPG type binary panels is better for that purpose...
Forum: DIY Speakers and Subs   01-28-2014, 02:22 PM
Replies: 128
Views: 11,020
Posted By omholt
No. You're mixing two things. There's a...

No. You're mixing two things. There's a difference between high gain reflections which is related to imaging (pin-pointing) and the power response of a speaker. Any speaker needs early reflections...
Forum: DIY Speakers and Subs   01-28-2014, 01:02 AM
Replies: 128
Views: 11,020
Posted By omholt
Another thing to add about that. Avoiding floor...

Another thing to add about that. Avoiding floor reflections is also important. To treat the floor reflections properly is very difficult. Most use a thick carpet. The problem with a carpet is that...
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