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Pulling my Hair out - Please Help!


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graemesimpson 
Member - Posts: 24
Member spacespace
Joined: April 29, 2003
Location: United Kingdom
Posted: June 24, 2003 at 9:11 AM / IP Logged  

I have an MR2 mk2 and have built a custom sub box to go behind the seat, using the Volume calculator for "Wedge Encloser 2" on this site, it gives the result of 0.38433 Cubic Feet.  Now several questios arise, how the hell do I find out how many Litres this is as some manufacturers give the woofer spec in Litres??  Secondly, would an 8" woofer such as the JBL GT2-8 work in this unit.

Basic dimensions are:

Basic Measurements are Width = 22.4" Height 1=9" Height 2 = 4" Depth = 7" thickness = 3/4"

Thanks

Graeme

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: June 24, 2003 at 12:14 PM / IP Logged  

1 cu ft = 28.31687 litres

Generally, an 8" sub will work well in a 0.36 cu ft sealed enclosure.  So it looks like you are on the right track.

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: June 24, 2003 at 12:14 PM / IP Logged  

1 cu ft = 28.31687 litres

I can't find the specs for the GT2-8, but the JBL GT800 8" sub will work well in a 0.36 cu ft sealed enclosure.  So it looks like you are on the right track.

graemesimpson 
Member - Posts: 24
Member spacespace
Joined: April 29, 2003
Location: United Kingdom
Posted: June 24, 2003 at 12:22 PM / IP Logged  

Many thanks DYohn, really appreciated.  One last thing though, how the hell do you get from Cu Ft to Litres ?????

Graeme

DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: June 24, 2003 at 12:31 PM / IP Logged  
Multiply the cubic feet number times 28.31687.  So, your 0.38433 Cubic Feet enclosure is the same as 10.883 litres.
graemesimpson 
Member - Posts: 24
Member spacespace
Joined: April 29, 2003
Location: United Kingdom
Posted: June 24, 2003 at 12:44 PM / IP Logged  

MANY THANKS.....I have regained my Sanity once again.

Big thank you from a dumb brit :-)


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