Bag End Infrasub 18 (and woofer..) - AVS Forum
Forum Jump: 
 
Thread Tools
Old 08-15-2006, 07:59 PM - Thread Starter
AVS Special Member
 
Spezzy's Avatar
 
Join Date: Jun 2006
Location: Huntington Beach, CA
Posts: 1,403
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 13
I found a nice deal for a brand bag end infrasub 18 woofer (only $90) I can't find much on specs though, except that the normal bag end can hit 8hz. I'm wondering if I got this and made a 3.0 cu ft enclosure (or larger) like the retail Infrasub, will I get the same or better performance? For an amp or crossover I have no idea what to go with though.. Help would be much appreciated! Thanks.

"The choices we make define our lives, because choice, not chance, determines destiny"

They call me the 18 year old DJ Audiophile-upgradeitis infected-guy!
Spezzy is offline  
Sponsored Links
Advertisement
 
Old 08-15-2006, 08:50 PM
Newbie
 
joecarrow's Avatar
 
Join Date: Jul 2006
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
The Bag-End subs operate on a principle known as ELF- extended low frequency. This puts a large woofer in a small sealed box where the mechanical resonance of the woofer/box system is at the high end of the system bandwidth. They're sealed, so you need several 18"s to get any sort of output below 20 hz.

There's a great article on the subject here: http://sound.westhost.com/project48.htm

In summary, that woofer is likely to have good excursion and sensitivity, but lousy T/S parameters for normal use. If you can follow the article I linked to, and you're able to perform the measurements involved in fine-tuning the circuit, I say go for it.
joecarrow is offline  
Old 08-15-2006, 08:55 PM
Advanced Member
 
Habs4life's Avatar
 
Join Date: Apr 2006
Location: Ontario Canada
Posts: 617
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I am building something similar to a BAG END Infra 12.http://www.avsforum.com/avs-vb/showthread.php?t=705711 I have read lots of reviews of the BAG ENDS and all give them hi praise for sound quality and extension but they have limitations as far as maximum SPL.For it to work properly you will also need to build the control unit described by Rod Elliot.
Habs4life is offline  
 
Thread Tools


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off