Log in
Register
Home
Forums
New posts
Search forums
What's new
New posts
New profile posts
Latest activity
News
Members
Current visitors
New profile posts
Search profile posts
Features
Log in
Register
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
Heat buildup in sealed boxes
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="Ivan Beaver" data-source="post: 133670" data-attributes="member: 30"><p>Re: Heat buildup in sealed boxes</p><p></p><p></p><p>I did some testing on one of our high output subs that utilize a normal type horn, and the original plan was to use thick aluminum panels for the access hatches.</p><p></p><p>I had the regular aluminum panel on one driver and a braced wood panel on the other driver. Both were exposed to the surrounding air equally.</p><p></p><p>So I put thermal probes on the magnets of each of the drivers and brought them outside so I could measure each of the drivers.</p><p></p><p>I ran pink noise at full power for 2.5 hours-monitoring the temp from time to time.</p><p></p><p>After they started "warming up", the aluminum panels were between 2 to 3° C cooler.</p><p></p><p>After 2.5 hours the temp had gotten to around 80° C. The limit for the drivers is 100 C.</p><p></p><p>As they were cooling off I also monitored the temp. The wood panel driver was cooling off faster than the aluminum panel driver.</p><p></p><p>As a result of this test-we changed to the wood panel-simply because it costs less to manufacturer and we did not feel that 2° C was worth it.</p><p></p><p>This was INSIDE. When outside the aluminum panel could conduct the suns heat and bring it INTO the cabinet.</p><p></p><p>Also the panels would not be exposed to the outside air all the time. In some setups they would be covered-which would reduce the heat transfer.</p></blockquote><p></p>
[QUOTE="Ivan Beaver, post: 133670, member: 30"] Re: Heat buildup in sealed boxes I did some testing on one of our high output subs that utilize a normal type horn, and the original plan was to use thick aluminum panels for the access hatches. I had the regular aluminum panel on one driver and a braced wood panel on the other driver. Both were exposed to the surrounding air equally. So I put thermal probes on the magnets of each of the drivers and brought them outside so I could measure each of the drivers. I ran pink noise at full power for 2.5 hours-monitoring the temp from time to time. After they started "warming up", the aluminum panels were between 2 to 3° C cooler. After 2.5 hours the temp had gotten to around 80° C. The limit for the drivers is 100 C. As they were cooling off I also monitored the temp. The wood panel driver was cooling off faster than the aluminum panel driver. As a result of this test-we changed to the wood panel-simply because it costs less to manufacturer and we did not feel that 2° C was worth it. This was INSIDE. When outside the aluminum panel could conduct the suns heat and bring it INTO the cabinet. Also the panels would not be exposed to the outside air all the time. In some setups they would be covered-which would reduce the heat transfer. [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Low Earth Orbit
DIY Audio
Heat buildup in sealed boxes
Top
Bottom
Sign-up
or
log in
to join the discussion today!