looneys - delay times
Printed From: Speakerplans.com
Category: Plans
Forum Name: 1850 and 186 horns
Forum Description: Discussion / Questions about the 1850 and 186 horns
URL: https://forum.speakerplans.com/forum_posts.asp?TID=31358
Printed Date: 26 March 2026 at 11:31pm
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: looneys - delay times
Posted By: Pav
Subject: looneys - delay times
Date Posted: 06 October 2009 at 10:05pm
Anyone help with a start point on delay times on a Berry ultradrive for looney bins assuming tops sat directly on top forward facing on outer edge? I'll tune em up once installed but need a starting point!
Cheers
Pav
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Replies:
Posted By: colinmono
Date Posted: 06 October 2009 at 10:32pm
We started with 1600mm for our 1850 horns based purely on the horn length - not quite the same design as the Looney but similar.
We now use 2344mm after doing some testing with the DCX auto align. We cross at 130Hz to reflex loaded twin 15" cabs, so that delay figure is very much specific to our set up and what you need may be very different (all depends on the phase shift of your mid cabs at the x-over freq if I understand it correctly).
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Posted By: Pav
Date Posted: 06 October 2009 at 11:45pm
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Cheers, I'll look at somewhere between those two figures then trust my ears. Did the autoalign work, and if so how did you get it to work??
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Posted By: colinmono
Date Posted: 07 October 2009 at 9:00am
Yep, autoalign did a good job. Used the berry ecm 8000 mike and http://www.dcx2496.fr/en/calage_en.php - these instructions .
Studio45 posted a good description of http://forum.speakerplans.com/forum_posts.asp?TID=29955&PID=297584&title=cross-over-and-time-delay#297584 - how to do it without auto align here a little while ago. Its been discussed here a lot over the years - use the search facility :-)
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