Menu
Forum
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Car Audio Discussion
General Car Audio
Car Audio Build Logs
Car Audio Equipment
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Help
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Car Audio Classifieds
Car Audio Wanted
Classifieds Member Feedback
Gallery
New media
New comments
Search media
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Join
Test
Forum
Search
Search titles only
Search titles only
Log in / Join
Search
Search titles only
Search titles only
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Menu
Reply to thread
Forum
Car Audio Help
Enclosure Design & Construction
How to go about designing desktop monitors
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="Moble Enclosurs" data-source="post: 7638872" data-attributes="member: 634917"><p>You want to go sealed. You can go ported if you like and get decent results, but for desktop, size would be a factor. That's really the main difference between that and bookshelf. Placement and environmental factors are the same. 30 degrees into the focal listening point and head level or angled to the head for best efficiency when dealing with sealed layouts.</p><p></p><p>The reason I would not recommend ported is due to near field response reflections of higher frequencies. By loading the enclosure with a port, you induce resonances more so than in room resonance, and when the two meet, they excite and become "hollow". This can be the effect of too small of a port and when dealing with proper response from "desktop" space, this is vital. No damping is required, no diffusers necessary, just plain accurate output. You are not looking to hit a 30hz note from a desktop enclosure with authority because that would be unnecessary due to placement and size issues. You would get some out of phase output either at the subrange or above it, so I'm sure you are not worried about that part. Have a dedicated sub for that, and make sealed enclosures based on the golden ratio and you should be fine.</p><p></p><p>You could make small passive radiators that are dipole for a more rich effect also.</p><p></p><p>And if sealed is not the route you want to go, due to the need for complexity and accomplishment, go full open baffle and place diffusers or acoustical absorbers behind them on the wall to reduce reflections.</p><p></p><p>As far as power, you should only need about 5 watts total. Then a separate 10 watt subamp. The sub, I would port....no question. Because in a room for home use, the gain drops much more than in vehicle so sealed subs are not recommended due to possible negative gain response at certain frequencies.</p></blockquote><p></p>
[QUOTE="Moble Enclosurs, post: 7638872, member: 634917"] You want to go sealed. You can go ported if you like and get decent results, but for desktop, size would be a factor. That's really the main difference between that and bookshelf. Placement and environmental factors are the same. 30 degrees into the focal listening point and head level or angled to the head for best efficiency when dealing with sealed layouts. The reason I would not recommend ported is due to near field response reflections of higher frequencies. By loading the enclosure with a port, you induce resonances more so than in room resonance, and when the two meet, they excite and become "hollow". This can be the effect of too small of a port and when dealing with proper response from "desktop" space, this is vital. No damping is required, no diffusers necessary, just plain accurate output. You are not looking to hit a 30hz note from a desktop enclosure with authority because that would be unnecessary due to placement and size issues. You would get some out of phase output either at the subrange or above it, so I'm sure you are not worried about that part. Have a dedicated sub for that, and make sealed enclosures based on the golden ratio and you should be fine. You could make small passive radiators that are dipole for a more rich effect also. And if sealed is not the route you want to go, due to the need for complexity and accomplishment, go full open baffle and place diffusers or acoustical absorbers behind them on the wall to reduce reflections. As far as power, you should only need about 5 watts total. Then a separate 10 watt subamp. The sub, I would port....no question. Because in a room for home use, the gain drops much more than in vehicle so sealed subs are not recommended due to possible negative gain response at certain frequencies. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Help
Enclosure Design & Construction
How to go about designing desktop monitors
Top
Menu
Home
Refresh