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
How to tune subwoofer box
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="Kevin McDonough" data-source="post: 205850" data-attributes="member: 10402"><p>for measuring impedance, its possible to make up a fairly simple circuit and use the outputs and inputs from a sound card and software such as Room EQ Wizard. While it works, a more plug and play solution can be found either here...</p><p></p><p><a href="http://www.daytonaudio.com/index.php/dats-dayton-audio-test-system.html" target="_blank">http://www.daytonaudio.com/index.php/dats-dayton-audio-test-system.html</a></p><p></p><p>or here...</p><p></p><p><a href="http://www.woofertester.com/wt2product.htm" target="_blank">http://www.woofertester.com/wt2product.htm</a></p><p></p><p>These give very accurate results, and can help both before you design and build your cabinet to measure and get exact t/s parameters for your woofer and afterwards to check that your port length and area is giving you the correct tuning frequency.</p><p></p><p>For measuring the response of your speaker, you will need a measurement microphone, a sound card/interface to plug the mic into your computer, and software.</p><p></p><p>The more you can spend on a measurement mic the more accurate it will generally be, but for your first time I wouldn't go crazy much better to get something serviceable and cost effective, and worry about a more expensive one if this becomes something you regularly do in the future.</p><p></p><p>For the software, Room EQ Wizard, HolmImpulse or ARTA are free and again will give you basic results and let you make some measurements, though investing in one of the dual channel FFT systems such as Smaart, Systune etc will give you very accurate results and let you check phase and line different parts of the speaker up at their crossover points etc.</p><p></p><p></p><p>However what will be even more important is your measurement environment and set up. Much better to do this outside in plenty of space if possible to eliminate room reflections from the measurement. </p><p></p><p>Kev</p></blockquote><p></p>
[QUOTE="Kevin McDonough, post: 205850, member: 10402"] for measuring impedance, its possible to make up a fairly simple circuit and use the outputs and inputs from a sound card and software such as Room EQ Wizard. While it works, a more plug and play solution can be found either here... [url]http://www.daytonaudio.com/index.php/dats-dayton-audio-test-system.html[/url] or here... [url]http://www.woofertester.com/wt2product.htm[/url] These give very accurate results, and can help both before you design and build your cabinet to measure and get exact t/s parameters for your woofer and afterwards to check that your port length and area is giving you the correct tuning frequency. For measuring the response of your speaker, you will need a measurement microphone, a sound card/interface to plug the mic into your computer, and software. The more you can spend on a measurement mic the more accurate it will generally be, but for your first time I wouldn't go crazy much better to get something serviceable and cost effective, and worry about a more expensive one if this becomes something you regularly do in the future. For the software, Room EQ Wizard, HolmImpulse or ARTA are free and again will give you basic results and let you make some measurements, though investing in one of the dual channel FFT systems such as Smaart, Systune etc will give you very accurate results and let you check phase and line different parts of the speaker up at their crossover points etc. However what will be even more important is your measurement environment and set up. Much better to do this outside in plenty of space if possible to eliminate room reflections from the measurement. Kev [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Low Earth Orbit
DIY Audio
How to tune subwoofer box
Top
Bottom
Sign-up
or
log in
to join the discussion today!
