Menu
Forum
General Car Audio
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Build Logs
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Home Audio
Off-topic Discussion
The Lounge
What's new
Search forums
Gallery
New media
New comments
Search media
Members
Registered members
Current visitors
Classifieds Member Feedback
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Register
Forum
Search
Search titles and first posts only
Search titles only
Search titles and first posts only
Search titles only
Log in / Join
What’s new
Search
Search titles and first posts only
Search titles only
Search titles and first posts only
Search titles only
General Car Audio
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Build Logs
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Home Audio
Off-topic Discussion
The Lounge
What's new
Search forums
Menu
Reply to thread
Forum
Car Audio Discussion
Subwoofers
Pneumatic sub
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="95stroked1500" data-source="post: 2076141" data-attributes="member: 569805"><p>for it to be legal at a comp-</p><p></p><p>1.- has to be an available production sub for sale</p><p></p><p>2.- has to be powered by standard audio equip.</p><p></p><p>for it to be cool and a crowd pleaser... anything goes!</p><p></p><p>hydraulic sub has been done many, many years back. if i remember the story right from the speaker engineer from europe who did it, i think they did a 48" sub +/- for a movie or some effect in one.</p><p></p><p>1/2" xmax = 1" linear P2P. and 22,000w equivalent @ 25hz i imagine will slam your cone to the end of it's stroke in a bad way.</p><p></p><p>in your calculations for 300 electrical watts, did you figure in efficiency? that on a good day 300 electrical watts only equates to 3 acoustical watts with a decently efficient speaker?</p></blockquote><p></p>
[QUOTE="95stroked1500, post: 2076141, member: 569805"] for it to be legal at a comp- 1.- has to be an available production sub for sale 2.- has to be powered by standard audio equip. for it to be cool and a crowd pleaser... anything goes! hydraulic sub has been done many, many years back. if i remember the story right from the speaker engineer from europe who did it, i think they did a 48" sub +/- for a movie or some effect in one. 1/2" xmax = 1" linear P2P. and 22,000w equivalent @ 25hz i imagine will slam your cone to the end of it's stroke in a bad way. in your calculations for 300 electrical watts, did you figure in efficiency? that on a good day 300 electrical watts only equates to 3 acoustical watts with a decently efficient speaker? [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Discussion
Subwoofers
Pneumatic sub
Top
Menu
What's new
Forum list
