Planning to build a box...what materials?

[Frankensuby 10+ year member]

The Driver is a Xenon 10" 2 ohm. It has a chart, with .42 internal volume(with driver) going for SPL, and .85(with driver) as an SQ oriented build. I was thinking .65 to .75 with driver would be good for me.

As far as resin, I've never used the stuff, but my dad has 2 gallons of it after his repairs on his log truck (fiberglass hoods on the big trucks). Is it just apply and let set situation? This would help me make the box fit perfect to the trunk wall //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

~Levi

 

[Immacomputer 10+ year member]

When they say the SPL enclosure being small, that means it's going to have a peak in the upper frequency spectrum and it will have very little low end. If you don't care about having low end, .65 will probably be fine.

 

[Frankensuby 10+ year member]

I thought SQ was when there was very little low bass, but more accurate reproduction? I'm aiming at 75% SQ with some 25% extra bass. Hence the .65 volume with driver.

So to achieve that, you are saying I'd be better off with a .55 for my idea? I'm new to sub box designs, I apologize.

~Levi

 

[Big Dee 10+ year member]

I thought SQ was when there was very little low bass, ~Levi

//content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif

 

[lilmaniac2 5,000+ posts]

I thought SQ was when there was very little low bass, but more accurate reproduction? I'm aiming at 75% SQ with some 25% extra bass. Hence the .65 volume with driver.
So to achieve that, you are saying I'd be better off with a .55 for my idea? I'm new to sub box designs, I apologize.

~Levi

i wanna know how u take percentages of things that arent numbers?

 

[Immacomputer 10+ year member]

So to achieve that, you are saying I'd be better off with a .55 for my idea? I'm new to sub box designs, I apologize.
~Levi

No. The smaller you go, the more of a peak you will create, thus the louder the box will be at higher bass frequencies. The smaller the enclosure, the less low end response you will have.

Give me the T/S parameters and I'll get you a proper size for that sub.

 

[Frankensuby 10+ year member]

i wanna know how u take percentages of things that arent numbers?

As stated before,

.85 cubic feet with drivers' volume= Musical (reprodcution)

.42 cubic feet with drivers' volume= SPL

So actual 75%/25% split is either

.6375/.2125 for Musical split (desired) = .6375 for musical 75%/25%

.3150/.1050 for SPL = .5250 for SPL 75%/25%

If my math is correct //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

As for the //content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif I meant as in better high response punch rahter than lower bass (rock listening rather than rap) in a sealed enclosure.

On a side note, the enclosure rough sketch i made only has .64 volume without the driver //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

~Levi

 

[Immacomputer 10+ year member]

As stated before, .85 cubic feet with drivers' volume= Musical (reprodcution)

.42 cubic feet with drivers' volume= SPL

So actual 75%/25% split is either

.6375/.2125 for Musical split (desired) = .6375 for musical 75%/25%

.3150/.1050 for SPL = .5250 for SPL 75%/25%

If my math is correct //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

As for the //content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif I meant as in better high response punch rahter than lower bass (rock listening rather than rap) in a sealed enclosure.

On a side note, the enclosure rough sketch i made only has .64 volume without the driver //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

~Levi

Low bass is NOT just for rap, that is a terrible generalization.

Link me to the sub. Is this the correct sub:

ftp://208.187.38.55/Phoenix_Gold/Manuals/Speakers/xenon/

If it is, I would do no less than 1 cubic foot. They recommend 1.65 for musical and I agree with it all the way.

 

[Frankensuby 10+ year member]

No. The smaller you go, the more of a peak you will create, thus the louder the box will be at higher bass frequencies. The smaller the enclosure, the less low end response you will have.
Give me the T/S parameters and I'll get you a proper size for that sub.

Phoenix Gold Xenon 10" 2-ohm:

T/s Parameters:

Fs=18.7Hz

Re=3.46 ohm (series)

QMS= 30.19

QES=.43

Qts=.42

Vas= 43.97 Liters

Mms=277.7 grams

Cms=260 uM/newtons

BL=16.3 Testa-M

SPL(2.83 volts)=85.31 dB

Sd=346.4 sq. cm

Xmax=40MM p-p *measured*

Hope that helps //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

~Levi

 

[Frankensuby 10+ year member]

Low bass is NOT just for rap, that is a terrible generalization.
Link me to the sub. Is this the correct sub:

ftp://208.187.38.55/Phoenix_Gold/Manuals/Speakers/xenon/

If it is, I would do no less than 1 cubic foot. They recommend 1.65 for musical and I agree with it all the way.

Sorry for the generalization, once again new to this thing. I've only dealt with midbass up.

Are you looking at vented? It does say 1.7 for vented, but I am working with a sealed box.

Technical sub name is X10d2

~Levi

 

[CJL 10+ year member]

As said, particle board will crumble. Particle board does not = MDF.Other available wood is Trupan (Light MDF) and Baltic Birch ply. Both are more expensive than MDF, but superior materials

hmm I never heard of this before,how much more is it compared to MDF?

 

[Immacomputer 10+ year member]

Sorry for the generalization, once again new to this thing. I've only dealt with midbass up.
Are you looking at vented? It does say 1.7 for vented, but I am working with a sealed box.

Technical sub name is X10d2

~Levi

The manual I downloaded was for a different generation of the Xenon line. The parameters were very different.

For your sub, I would do between .7-.85 cubic feet. That would give you a smooth and flat response and still be able to get pretty low while sounding nice. Your .65 would work as well.

 

[azbass 5,000+ posts]

wood: check

glue: check

stuff to put box together: check

 

[Frankensuby 10+ year member]

The manual I downloaded was for a different generation of the Xenon line. The parameters were very different.
For your sub, I would do between .7-.85 cubic feet. That would give you a smooth and flat response and still be able to get pretty low while sounding nice. Your .65 would work as well.

What is the Drivers' volume so I can add that into my box design? I really wish I could figure it out.

My current box design is about .64 Without the driver. So obviously I need to add something to that, or polyfill.

~Levi

 

[bjfish11 5,000+ posts]

hmm I never heard of this before,how much more is it compared to MDF?

I havent bought MDF in years, so I dont know the price of that ($15-20?), but I pay around $28 per sheet for Trupan.