sub enclosure advice needed
Thread Starter
Racer
Joined: Aug 2011
Posts: 373
Likes: 75
From: Iron Station, NC
sub enclosure advice needed
I built two sealed sub enclosures that measure .35 cubic inch of space each (built them for someone else using Arc audio specs). Arc lists the optimum specs to be .35 for the 8" subs.
Well I have two CDT HD-800CF's and built the same boxes for me, well I screwed up and didnt check the requirements which are listed below.
What trouble is this going to cause and is there anything I can do to make my "already built" enclosures work with the CDT's. Will poly foam help?
http://www.cdtaudio.com/pdf/HD-800CF.pdf
Well I have two CDT HD-800CF's and built the same boxes for me, well I screwed up and didnt check the requirements which are listed below.
What trouble is this going to cause and is there anything I can do to make my "already built" enclosures work with the CDT's. Will poly foam help?
http://www.cdtaudio.com/pdf/HD-800CF.pdf
Thread Starter
Racer
Joined: Aug 2011
Posts: 373
Likes: 75
From: Iron Station, NC
Yeah my mistake too busy watching the football game and typingArc Audio sub requiring .35 cubic feet
http://www.arcaudio.com/productdescr...eries/arc8.asp
Former Vendor
Joined: Oct 2007
Posts: 2,713
Likes: 9
From: Morgan Utah
The main things you run into with an undersized enclosure is reduced low end extension and higher power handling and there could be a bit "tighter" response but that seems to be a subject of much debate, even what it means
The polyfil is generally a good idea, let us know if it helps
Rick
The polyfil is generally a good idea, let us know if it helps
Rick
Thread Starter
Racer
Joined: Aug 2011
Posts: 373
Likes: 75
From: Iron Station, NC
The main things you run into with an undersized enclosure is reduced low end extension and higher power handling and there could be a bit "tighter" response but that seems to be a subject of much debate, even what it means
The polyfil is generally a good idea, let us know if it helps
Rick
The polyfil is generally a good idea, let us know if it helps
Rick
I appreciate the response but I am a decent carpenter but dont know squat about the technical terms dealing with car audio. That being said what exactly does "reduced low end extension" and "tighter response" mean?
Thanks
Rich
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Former Vendor
Joined: Oct 2007
Posts: 2,713
Likes: 9
From: Morgan Utah
Reduced low end extension, it will not play as low in frequency, how reduced, that is rather complicated to calculate, to many variables.
Tighter response, crisper sounding, more closely following the input signal, etc....this has been a subject of much debate, we seem to all hear a bit differently being just one part of it.
Do not over stuff the enclosures, how much to use is also determined by enclosure size, subwoofer design, etc.....................
I used 1 lb per enclosure for my home audio, quad 15" subs, in each separate enclosure, recommended by the the sub manf for the size I of the enclosure, intended use, etc....
Rick
Tighter response, crisper sounding, more closely following the input signal, etc....this has been a subject of much debate, we seem to all hear a bit differently being just one part of it.
Do not over stuff the enclosures, how much to use is also determined by enclosure size, subwoofer design, etc.....................
I used 1 lb per enclosure for my home audio, quad 15" subs, in each separate enclosure, recommended by the the sub manf for the size I of the enclosure, intended use, etc....
Rick
Melting Slicks
Joined: Mar 2007
Posts: 3,327
Likes: 166
From: Summerton SC
Tech Contributor
Corvette Forum Comedy routine, Yeah my mistake too busy watching the football game and typing
Arc Audio sub requiring .35 cubic feet
http://www.arcaudio.com/productdescr...eries/arc8.asp
Yeah my mistake too busy watching the football game and typingArc Audio sub requiring .35 cubic feet
http://www.arcaudio.com/productdescr...eries/arc8.asp
Last edited by Thrash; Nov 30, 2011 at 05:54 PM.
Thread Starter
Racer
Joined: Aug 2011
Posts: 373
Likes: 75
From: Iron Station, NC
So its all good
Thread Starter
Racer
Joined: Aug 2011
Posts: 373
Likes: 75
From: Iron Station, NC
I was able to cancel an order from Parts Express for polyfill ($10+ per bag and $14+ for regular shipping).
I picked up a large bag of polyfill at Walmart yesterday for $3.47, the savings will purchase two good cigars....
I picked up a large bag of polyfill at Walmart yesterday for $3.47, the savings will purchase two good cigars....
