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 Equipment
Subwoofers
Polyfill! does it realy work?
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="bladebarrier" data-source="post: 5189149" data-attributes="member: 603808"><p>40% more enclosure space seems like an absurd amount that would only be limited to specific enclosure types, and even then it sounds like an exaggeration to sell the product.</p><p></p><p>Maybe a transmission line that's properly designed could approach those numbers, but the design process for such speakers is well beyond the basic theory of 2nd, 4th, and often even 6th order enclosures.</p><p></p><p>Almost every speaker box, that includes an open air driver, should have some form of "fill", however increasing the fill level too much actually can be counter-productive as it reduces the actual airspace in the enclosure.</p><p></p><p>Fill can also cause issues by obstructing, or bonding to, speaker parts, as well as causing irregularities in 4th and 6th order designs if the air flow is changed enough.</p><p></p><p>Basically, yes, add some fill that is safe for your speaker to your box, and don't expect miracles.</p><p></p><p><strong>Most manufacturer recommended enclosure sizes ASSUME that you will use fill, and as such as you are supposed to fill it as a matter of standard practice. Contact the manufacturer of your driver for their suggested type of fill, amounts, etc.</strong></p><p></p><p>Many companies will be happy to answer such questions, as it shows that you're willing to put forth more effort than buying some low grade plywood and hammering some nails into a piece of crap shape that is ready to blow itself apart.</p></blockquote><p></p>
[QUOTE="bladebarrier, post: 5189149, member: 603808"] 40% more enclosure space seems like an absurd amount that would only be limited to specific enclosure types, and even then it sounds like an exaggeration to sell the product. Maybe a transmission line that's properly designed could approach those numbers, but the design process for such speakers is well beyond the basic theory of 2nd, 4th, and often even 6th order enclosures. Almost every speaker box, that includes an open air driver, should have some form of "fill", however increasing the fill level too much actually can be counter-productive as it reduces the actual airspace in the enclosure. Fill can also cause issues by obstructing, or bonding to, speaker parts, as well as causing irregularities in 4th and 6th order designs if the air flow is changed enough. Basically, yes, add some fill that is safe for your speaker to your box, and don't expect miracles. [B]Most manufacturer recommended enclosure sizes ASSUME that you will use fill, and as such as you are supposed to fill it as a matter of standard practice. Contact the manufacturer of your driver for their suggested type of fill, amounts, etc.[/B] Many companies will be happy to answer such questions, as it shows that you're willing to put forth more effort than buying some low grade plywood and hammering some nails into a piece of crap shape that is ready to blow itself apart. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Equipment
Subwoofers
Polyfill! does it realy work?
Top
Menu
Home
Refresh