AdiSRI
Member
Registered: 1st May 02
Location: Berkshire
User status: Offline
|
Right, currently i have a JL 12 W3V2 sub in a sealed box.
From the JL website it says:
Sealed Enclosure Range: 1.00-1.50 cu.ft. (28.3-42.0 liters)
Ported Enclosure Range: 2.00-3.00 cu.ft. (57.0-85.0 liters)
My current box is 1.5 cu.ft i have been told.
What differece will it make to the sound gopiong down to 1 cu ft and what difference does wadding make to the sound??
HELP!!
|
cdcool1
Member
Registered: 9th Jun 02
Location: Scunny
User status: Offline
|
check the other thread, i've just added what the difference in sizes of sealed enclosures will make 
its hard to describe the effect of wadding, personally its sounds much more pleasent.
if you want to reduce the size of the enclosure without building a new box and you have not braced your box, that might be worth a shot.
Bracing will make the sound sharper because it will stop the walls of the box flexing
|
AdiSRI
Member
Registered: 1st May 02
Location: Berkshire
User status: Offline
|
The box i am using is just the standard type box that sextons supplied with the sub...
Wat do i wad the box with if i want to try it?
|
cdcool1
Member
Registered: 9th Jun 02
Location: Scunny
User status: Offline
|
you wad the box with wadding 
clicky
|
AdiSRI
Member
Registered: 1st May 02
Location: Berkshire
User status: Offline
|
Can i buy that at sextons etc???
How much wud i need for a single box?
Thanks for the advise m8, boxs are not my forte!
|
cdcool1
Member
Registered: 9th Jun 02
Location: Scunny
User status: Offline
|
Just work out the internal surface areas of your box, and add it together. You should put some wadding on all surfaces (internally of course ) of your box.
Another little thing that might help is varnishing the inside walls of the box too (if they aren't already).
Make sure it is braced tho mate, this is what will really make the improvements. If the sides flex just a little bit, you are losing output power and clarity
Do them three things and you'll notice a vast improvement 
|
AdiSRI
Member
Registered: 1st May 02
Location: Berkshire
User status: Offline
|
ok m8y its just an off the shelf box, i dont think its braced at all, and i dont think i can get it apart to brace it now can i??
|
cdcool1
Member
Registered: 9th Jun 02
Location: Scunny
User status: Offline
|
not sure, i haven't seen it 
You might beable to prise a panel off, but you might end up ruining the box doing that.
You might be as well buying a sheet of MDF and have a play around in the garage for a bit.
Then if it doesn't sound good, just use your original box
MDF isn't expensive plus it will be rewarding making your own box
|
AdiSRI
Member
Registered: 1st May 02
Location: Berkshire
User status: Offline
|
hmm i am tempted on this now, maybe i shall attempt it, shud i make it smaller then the 1.5 cu ft u think, maybe 1.2??
|
cdcool1
Member
Registered: 9th Jun 02
Location: Scunny
User status: Offline
|
go for around 1.3 because the bracing and wadding will displace quite a bit of volume
|
