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need help with 4th order


jacob123

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i gotta zv6 18 and the taramps bass 5k im trynna do a 4th order i did my measurements and i got 14.48 cubes before i add the sealed section. so i was thinking 4 cubes on the sealed side and that would leave around 10 on the ported side just need thoughts before the final decision.

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Your cone excursion with a 4,10@45Hz  4th bandpass with the Sundown Zv6 18D2 on 5000W is as follows:

 

123.png

 

As you can see at lower frequencies you hit Xmax =35mm, setting your subsonic filter to 20Hz can avoid that happening or consider less than 4 net.

 

Other than that your projected frequency response using a 2.5:1 chamber size ratio will be very peaky like shown in the figure below.

 

FR.png

 

 

 

 

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I’d do 3 cubes sealed side 

2000 Suburban 6 runs of 2/0

12 timpano audio mids,6 timpana audio tweets and 1 timpano compression horn per door 

8 banks of blue Maxwells + 260ah of Yin Long LTOs 

2 370 Amp Autotech Alts 

mids amps 2  Crescendo Skyway 3ks 

Tweet amp Crossfire 2000.4

sub amp: 4 Crossfire XT 8ks

Subs: 8 18 in Crossfires in a 4th order


Best Scores at events…

161.6@38hz DBdrag  sealed on the dash… 162.54 outlaw…161.14 Meca headrest 

 

 

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