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calculating cabin gain?


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wildchildbmx6 
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Joined: October 21, 2006
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Posted: November 16, 2006 at 8:02 PM / IP Logged  
i have an expedition and im running 2 kicker L7's. they are in a 9 cube box at 40 hz. i did the calclations on WinISD and it came out to be about 130db's. i thought it would be higher but them i remembered cabin gain. what should i expect to be running at peak?
aznboi3644 
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Posted: November 16, 2006 at 10:05 PM / IP Logged  
Um...also depends on the placement...you could try building a crx style box subs up ports back
stevdart 
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Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: November 16, 2006 at 10:14 PM / IP Logged  
That's why we have real life SPL meters;  you can't calculate cabin gain, but you can assume 6 to 12 db with that setup (barring all other contributing factors...).  For comp, you're going to want to experiment with the tuning with the help of a meter.
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
wildchildbmx6 
Member - Posts: 39
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Joined: October 21, 2006
Location: United States
Posted: November 16, 2006 at 10:18 PM / IP Logged  
i was going to have the subs and port firing back. should it place it differently? where should i put the port in relation to the subs?

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