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Old 10th June 2004, 03:25 AM   #1
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Default tahoe box help

I am trying to figure out the design that i am going to use when i build my box for my four door tahoe. I want to make a box that covers the hole rear space behind the rear seat and is just tall enough to mount the sub woofer in. I am sorry but i can't get any deminsions right now cause it is in the shop. Any suggestions would be great. Oh by the way i am using to 10s with a 400 watt amp. what else do i need to know to design this thing.
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Old 24th June 2004, 03:12 AM   #2
pol is offline pol  United States
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Default subwoofer design for tahoe truck 4 door

if u want good bass, a down firing design will help you get about 1.5 - 3 db. if u want sq applications then i suggest u go sealed with a qtc of .707 alignment. u want it loud then go ported... sql application for a ported enclosure is possible with a tuning of 30-35 hertz. box size varies... i have to know what type of sub u r using. n e ways.... post n i'll get back to ya...
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Old 21st July 2004, 06:53 AM   #3
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sorry it took so long to reply
I have done alot of planning
heres what i have in mind.

vehicle:
1999
chevy
tahoe
four door
LT trim package.

Head unit:
Kenwood 422

What i have for stereo:
Infinity kappa 60.5i component set fornt speakers
Infinity Kappa 62.5ci coaxail set- rear speakers
Kicker Solo Baric 12 inch L5
Hifonics zues zx6400- for the speakers 4x75 rms i think
Alpine V-12 pro mvr? 1005- sub amp- i think it is a 150x2

both amps are into 4 ohms

four gauge power wire and adding a second battery

So now for the ideas from the pro(yall)
what do you think about what i have choosen and what ideas for sub box size and type
any comments welcome adn i am sure will help in some way cause i am new and trying to learn
thanks
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Old 21st July 2004, 08:29 PM   #4
pol is offline pol  United States
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first of all ur head unit is good, mid n highs r great! the thing u need now is a cross over or dsp. ( which is optional! ) that will help u fine tune ur system. when u do that and IF u do it, i recomend u use a classical cd. for ur box... hmmm... if u like to b really loud i'd go ported. by the way... r u using 2 12 inch solo l5's? if u go ported n u want an awesome system which u have already... i'd go with a tuning of 34-37 hertz. ( LIVIN LOUD ) the problem with ported ... box may get huge... but don't worry! just give me the dimensions for the back of the truck n i will design the enclosure. regardless if it's big, moderate, or small... i can design a ported box that will no less impress you!
but the enclosure will depend on you. i have to ask... what do u listen to? that will help in a way.... oh... when u wire the amps, the fuse should not be more that 12 inches away from the battery. n when u make the ground connection from the amp... no longer than 2 ft. that's the best advise i'll give u.
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Old 21st July 2004, 11:08 PM   #5
Stocker is offline Stocker  United States
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You want a false floor, yes? Assuming you can cut worth a darn with a jigsaw this should be no problem, and if you can clear the woofer's motor, you should have at least a couple cubic feet to work with...almost always plenty for a car sub. This should be cake.
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Old 22nd July 2004, 12:03 AM   #6
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I think that a active crossover and kick panels will come next summer or when i get some more money.

I am using one 12 inch solo baric L5. I measure the space that I want to take up adn a box that is 24 inches wide by 24 inches long by 13.5 inches tall would be as big of box as i really want to put in the back. I think that this enough room, I think, for this one sub. I think that the ported box is the way to go because it is more efficant with less power, correct? The only thing that i am worried about is that the bass won't be tight, think thats the word, or crisp. Will the a tuning of 34-37 hertz make good loud bass that is crisp or has a good punch.

I listen to all types of music not really set on a particular type.
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Old 26th July 2004, 11:33 PM   #7
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you better check with kicker on the ported box. if i`m thinking right the whole solo baric line were made for sealed boxes,the 12`s are for a 1`cube.
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Old 27th July 2004, 12:12 AM   #8
Stocker is offline Stocker  United States
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If that's the case, then you could fit ~4x12" (approx. area of 1.5-2 x 18") in that space.

Cars have a lovely feature called cabin gain that makes the rolloff of a sealed box almost nil in some cases. Do a bit of research - you may not need to worry about porting the box(es) at all.
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Old 27th July 2004, 05:33 AM   #9
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I am going to have to see what kicker says. my freind said that they put these in bandpass boxes in boats all the time but i think that will muffle the hit of the woofer. A sealed box sure would make construction alot easier.

Stocker could you explain what you mean by then you could fit ~4x12" (approx. area of 1.5-2 x 18") in that space
please humor me i am new at this.
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Old 29th July 2004, 04:10 AM   #10
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Ok well here are the results that winisp gave me. This is the first time that i have used the program so please tell me if i messed something up. Also if some one else would like to design a box for me i would like it alot.
Want a vented box with a rectangular port. About the same size as the the one in the results.
using a solobaric 12 inch L5

Driver : solobaric s12L5
Vas : 73.5
Qts : 0.65
Fs : 31.30
SPL : 87.30
--
Project by : trailsnail85
Project for : trailsnail85
--
Number of drivers : 1
Box type : Vented
Box size : 1.750 ft^3
Tuning frequency : 35.00 Hz
Vent : 1 vent(s)
26.24 in length for each
2.50 x 10.00 in rectangle


Relative
Freq Gain SPL
[Hz] [dB] [dB]
20.00 -14.76 90.64
25.00 -9.31 96.09
30.00 -5.77 99.63
35.00 -2.82 102.58
40.00 -0.20 105.21
45.00 2.00 107.40
50.00 3.57 108.97
55.00 4.39 109.79
60.00 4.58 109.98
65.00 4.40 109.80
70.00 4.05 109.46
75.00 3.67 109.07
80.00 3.30 108.70
85.00 2.96 108.36
90.00 2.67 108.07
95.00 2.40 107.81
100.00 2.18 107.58
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