MT122 - 2 x MT121 coupling question

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2 x MT121 coupling question

Printed From: Speakerplans.com
Category: Plans
Forum Name: MT122
Forum Description: Discussion / Questions about the MT122
URL: https://forum.speakerplans.com/forum_posts.asp?TID=102000
Printed Date: 19 April 2024 at 1:48am
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com

Topic: 2 x MT121 coupling question

Posted By: Foca_Dacian
Subject: 2 x MT121 coupling question
Date Posted: 01 June 2018 at 12:49pm

I was looking at the MT121's TDA angle of the horizontal dispersion (20 degrees)and the angle of the side panel of the box (10 degrees).

If you put two MT121 side by side, won't that cause 10 degrees of overlaping of the mid frequencies==>combfiltering?

Should'nt they be splayed at an angle so no overlaping occurs?

I'm asking this because all the stacks I've seen with these, the boxes where next to each other.

Replies:

Posted By: Jo bg
Date Posted: 01 June 2018 at 1:11pm

I have mt121 with 60x40 horn and prefer to splay them with a divider to get something like 40 degree angle between them... It is more related to the hf horn, so if you are using 90 degrees horns you'll probably need to splay them more.

Posted By: Risc_Terilia
Date Posted: 04 June 2018 at 12:31pm

Foca_Dacian wrote:

I was looking at the MT121's TDA angle of the horizontal dispersion (20 degrees)and the angle of the side panel of the box (10 degrees).

If you put two MT121 side by side, won't that cause 10 degrees of overlaping of the mid frequencies==>combfiltering?

Should'nt they be splayed at an angle so no overlaping occurs?

I'm asking this because all the stacks I've seen with these, the boxes where next to each other.

You're right, the systems that stack like you've seen are wrong Smile