1850 and 186 horns - Could the 186 be narrowed? (smaller driver)

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Could the 186 be narrowed? (smaller driver)

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=44547
Printed Date: 27 March 2026 at 8:37am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com

Topic: Could the 186 be narrowed? (smaller driver)

Posted By: binkstir
Subject: Could the 186 be narrowed? (smaller driver)
Date Posted: 25 October 2010 at 3:39pm

24 inches is a little wide for my living room and I'd like to have a bass horn. I was wondering if I could take this plan and narrow it to maybe 18 inches and use a 12" in it instead.

Replies:

Posted By: JDCutta
Date Posted: 25 October 2010 at 4:43pm

Changing the width will affect the response from the cab, What driver do you intend to put in it, as this will have a major effect on response aswell?

If its for your living I would look into other options available ;)

Posted By: djyves
Date Posted: 25 October 2010 at 5:33pm

http://forum.speakerplans.com/modified-186-horn-build-pics-more-added-10-06-09_topic21015_page1.html - this guy changed the with from 636mm to 536mm

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"If brute force doesn't work, you're just not using enough!"

Posted By: binkstir
Date Posted: 25 October 2010 at 7:16pm

I was thinking about using this driver

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=290-510 - http://www.parts-express.com/pe/showdetl.cfm?Partnumber=290-510

Posted By: binkstir
Date Posted: 25 October 2010 at 7:54pm

Thanks Djy for the link... cool build page.

I guess my thinking there should be some kind of horn design that would work with a 12 inch speaker.

Posted By: subbass
Date Posted: 25 October 2010 at 8:01pm

http://www.freespeakerplans.com/plans.html - http://www.freespeakerplans.com/plans.html

take a look at some of these

Posted By: binkstir
Date Posted: 26 October 2010 at 1:44am

Wow, lots of cool stuff, thanks!

Posted By: Wrighty
Date Posted: 26 October 2010 at 11:28am

If you're after a horn for a 12" driver, look at the Punisher. You need to use the Ciare driver which it's designed for though. That Eminence won't cut it.

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ALL YOUR BASS ARE BELONG TO US.

Posted By: mykey-
Date Posted: 26 October 2010 at 11:35am

then have a RLH (BLH) instead of a FLH, or even a TH

you could design a nice cab for a 12'' driver

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BbbBBRAAAAPppBBBBbgushhhhhhhhssshhhhhGrAbRAAAAAAPPPPPp = Dubstep

Posted By: JDCutta
Date Posted: 26 October 2010 at 12:13pm

You could also have a look into some of the designs from Billfitzmaurice.com

The plans are cheap, and are based around some cheap eminence drivers, if it is for the living room TV/Movies/Music I'd go for the THT which can be built slim.

There is also some good tapped horn designs over on diyaudio.com in the subwoofer section. Jbell has a single sheet plan, that uese the eminence 3015lf,

Don Synder has a tapped horn design for the Lab 12 - http://www.diyaudio.com/forums/subwoofers/143714-lab12-tapped-horn.html

And Lil mike has plans for a 6'5" driver

Posted By: JDCutta
Date Posted: 26 October 2010 at 12:16pm

Lil mikes tapped horn - http://www.avsforum.com/avs-vb/showthread.php?t=1238398

Jbells single sheet tapped horn http://www.diyaudio.com/forums/subwoofers/170771-single-sheet-th-challenge-6.html

Google is you friend ;)

Posted By: t.geessounds
Date Posted: 26 October 2010 at 2:43pm

how about this one with a very cheep driver

http://www.diysubwoofers.org/projects/other/PA310-TH/ - http://www.diysubwoofers.org/projects/other/PA310-TH/