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thebidsocram 
Member - Posts: 10
Member spacespace
Joined: April 20, 2017
Location: Philippines
Posted: April 20, 2017 at 3:47 PM / IP Logged Link to Post Post Reply Quote thebidsocram
Guys,
Newbie here, i want to design a enclosure with a ported vent, but i don't know how much volume requirement to produce good sound of my 12 inches sub-woofer.
any recommendation of volume requirement from you guys with sound enthusiast? I do already check the volume calculator from this and understood how to do it, but i want to know the general rule of thumb how much cubic feet of air space or volume of every inch of a sub-woofer size.
your replies are highly appreciated.
thebidsocram
marklar65 
Member - Posts: 19
Member spacespace
Joined: October 20, 2006
Location: United States
Posted: April 22, 2017 at 1:01 AM / IP Logged Link to Post Post Reply Quote marklar65
There is no "Rule of Thumb" on the volume requirement for a size of woofer. The volume of the enclosure will depend on the woofer parameters. Every woofer is built with different materials and methods which affect the output. Post the model of woofer you plan on using and I'm certain one of the fellow enthusiasts will be able to give you the volume/port dia./port length to tune it to the frequency you are trying to achieve. Best of luck to ya!
thebidsocram 
Member - Posts: 10
Member spacespace
Joined: April 20, 2017
Location: Philippines
Posted: April 22, 2017 at 1:09 AM / IP Logged Link to Post Post Reply Quote thebidsocram
thanks mark,
my sub make is lightning lab model 1XL with 12" diameter, 500 rms.
thebid
thebidsocram
thebidsocram 
Member - Posts: 10
Member spacespace
Joined: April 20, 2017
Location: Philippines
Posted: April 22, 2017 at 1:15 AM / IP Logged Link to Post Post Reply Quote thebidsocram
planned to tune of 35hz.
i did lost my sub manual to find the sub characteristics. even i search it on internet the sub was not much known but here in the Philippines, its popular.
thebidsocram
DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: April 22, 2017 at 11:19 AM / IP Logged Link to Post Post Reply Quote DYohn
Never heard of Lightning Lab. Follow the manufacturer's recommendations.
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thebidsocram 
Member - Posts: 10
Member spacespace
Joined: April 20, 2017
Location: Philippines
Posted: April 24, 2017 at 3:57 PM / IP Logged Link to Post Post Reply Quote thebidsocram
dears,
here are the specs. mybe you could help me build my enclouse ported.
at least the enclouse volume is enough for me.the rest i can manage
SPECS: lightning lab 1xl
500 watts RMS rated continous power
1000 watts RMS max
dual 2 ohms coil
Double 220oz Magnet (440oz)
12" inch SUBWOOFER
mounting depth 5.75" inch
frequency response 20 Hertz ~ 200 Hertz
pressed paper CONE
extra heavy duty rubberized foam like EDGE
class A solid DIECAST BASKET
SOLID COPPER voice coil
4 pigtails
2.75" inch HIGH DENSITY ALUMINUM VOICE FORMER
extra wide SPIDER
10 Kgs net weight
these only i've got.
thebidsocram
DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: April 29, 2017 at 4:36 PM / IP Logged Link to Post Post Reply Quote DYohn
There is no information in those "specs" to help decide on an optimal enclosure size or type. Go ask a dealer in your area what they recommend.
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