posted
This is still here dang been 7 years since I was here last hehe.
-------------------- "Knowledge is the key that opens the door to endless posibilities!" "It never hurts to try even if it ends up in failure, the expereince will be all worth the while." Posts: 159 | From: Somewhere | Registered: Jul 1999
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posted
W00t! Sticky. After only the better half of a decade.lol
I think i'm gonna do another abc for my 18hc. The last one was something like 9 ft^3, but in the last minute rush to be done before it snowed, i tuned it wrong and ended up tuning around 37-38 rather than 32.
It was loud, and sounded good, but it didn't get very low.
Now I'm debating on whether to just redo the ports, and use this box, or build a new one around 6 ft^3.
I'm also thinking about makeing one for two fosgate punch 12's, around 5 ft^3.
-------------------- 1st gen. S10 Blazer
1 re 18hc
1 Fried Tsunami DB1100
1 7.81 cubic ft. net box
97.75 square inches of port
38.7hz
no more BOOM Posts: 287 | From: u.s.a | Registered: Aug 2002
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posted
Even after reading through much of this thread...I STILL have a question. If my enclosure design for a standard ported box goes like this:
4 cubic feet tuned to 25 Hz, 2 4 vents 20 long
Would I add to the 2.67 cube side of an ABC box to account for the driver volume, or not?
Example: if my driver volume is .15 cu. ft., should I make the larger box 2.82 cubes or just 2.67?
Same question for the port...if I put the third port (crossover port? series port maybe?) in the larger box, do I add the volume of the port to that side?
If these things are so touchy to misalignment, I don't want to screw it up!
posted
i have 2 of the db drive platinum plw 15's, any suggestions for building one of these boxes for those? db drive says to put them in 2.5-3 cu ft
Posts: 74 | From: south carolina | Registered: Nov 2007
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i havne' been on the board much in like 5 yrs and this is still going, actually still got my ABC down here with 2 jlw3 18's in it. wish i had a rack amplifier to hook them up too!
another bump for the best box i ever built!
can't beat the efficientcy and SQ from that puppy
-------------------- later, michael nitzh AIM name limige1 DRIVE IT LIKE YOU STOLE IT!!
94 LT1 Z28 6 speed 500 dei running 6.5 set of boston accostic rally components in rear 5.25 quartz components up front audiocontrol eqs and kenwood 910DVD deck. Posts: 918 | From: Detroit, MI USA | Registered: Jan 2001
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posted
heres the guts of the box i made, doubled up the mdf all the way around and triple is some areas. designed for my 18w3 i didn't want any flexing going on, flex kills you.
-------------------- later, michael nitzh AIM name limige1 DRIVE IT LIKE YOU STOLE IT!!
94 LT1 Z28 6 speed 500 dei running 6.5 set of boston accostic rally components in rear 5.25 quartz components up front audiocontrol eqs and kenwood 910DVD deck. Posts: 918 | From: Detroit, MI USA | Registered: Jan 2001
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posted
Feeling nostalgic, so i just re-read this whole thread. Now that I'm good and tired, and my eyes hurt, I was thinking about something.
Normally you have 1 port in the larger chamber, 1 in the small chamber, and 1 through the divider. Some people use 2 ports in each chamber and 2 in the divider as well.
If I were to use 4-4" ports in each chamber, and then 4 through the divider, any thoughts on how it would work out? Just wondering if the decreased pressure through the divider would have an adverse effect on the tuning.
I'd really like to go with round ports this time and 4" is the largest i can get around here. That would give me ~100 sq in. of area.
I could also go with 3 ports per chaber/divider for ~75 sq in. area, but the same concern as stated above.
-------------------- 1st gen. S10 Blazer
1 re 18hc
1 Fried Tsunami DB1100
1 7.81 cubic ft. net box
97.75 square inches of port
38.7hz
no more BOOM Posts: 287 | From: u.s.a | Registered: Aug 2002
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posted
i just built one of these boxes for a friend of mine. he is using a alpine type r 12 and an alpine 500 watt rms amp, people cant belive its just one 12 and only 500 watts.
-------------------- TEAM SOUNDSTREAM STREET A "Sex is like art. Most of it is pretty bad, and the good stuff is out of your price range" Posts: 655 | From: Iowa | Registered: Apr 2004
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My friend said that my speakers are cooler than yours.... therefore I'm cooler than you are. Don't argue with me about it either. Posts: 2371 | From: Vegas | Registered: Mar 2001
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quote:Originally posted by koolade9: how would you go about making the difference between tuning freq's on each port smaller?(i.e., less than a 1 octave difference)
I just felt like quoting the almost 8 year anniversary of this post...
One of the ABC boxes I built is still floating around my hometown between kids calling it "the magic box"...
Is Dukk even around anymore???
-------------------- Power without control isn't performance. It's dangerous. Posts: 848 | From: IL | Registered: Jan 2000
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