Log in
Register
Home
Forums
New posts
Search forums
What's new
Featured content
New posts
New profile posts
Latest activity
News
Members
Current visitors
New profile posts
Search profile posts
Features
Log in
Register
What's new
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Menu
Install the app
Install
Reply to thread
Home
Forums
Low Earth Orbit
DIY Audio
No compromises front loaded double 18” cab
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="David Morison" data-source="post: 132211" data-attributes="member: 2076"><p>Re: No compromises front loaded double 18” cab</p><p></p><p></p><p></p><p>The closest I've seen to any "rule of thumb" for estimating the length reduction was <a href="http://www.jlaudio.co.uk/header/Support/Tutorials/Enclosure+Ports/Tutorial%3A+Enclosure+Ports/640397" target="_blank">from a manufacturer specialising in car audio</a>, they suggested to shorten by 1/2 of the height of the port - eg a 22" wide, 4" tall port would be shortened by 2". I suspect that may still be a little simplistic, though better than nothing.</p><p></p><p>Building a prototype with some facility to get in and cut the port progressively shorter and measuring impedance would be needed to be sure - given your "No Compromises" goal that would seem a worthwhile investment.</p><p></p><p>HTH,</p><p>David.</p></blockquote><p></p>
[QUOTE="David Morison, post: 132211, member: 2076"] Re: No compromises front loaded double 18” cab The closest I've seen to any "rule of thumb" for estimating the length reduction was [url=http://www.jlaudio.co.uk/header/Support/Tutorials/Enclosure+Ports/Tutorial%3A+Enclosure+Ports/640397]from a manufacturer specialising in car audio[/url], they suggested to shorten by 1/2 of the height of the port - eg a 22" wide, 4" tall port would be shortened by 2". I suspect that may still be a little simplistic, though better than nothing. Building a prototype with some facility to get in and cut the port progressively shorter and measuring impedance would be needed to be sure - given your "No Compromises" goal that would seem a worthwhile investment. HTH, David. [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Low Earth Orbit
DIY Audio
No compromises front loaded double 18” cab
Top
Bottom
Sign-up
or
log in
to join the discussion today!
