Mounting Depth help

[Jh8909 10+ year member]

The mounting Depth of my 18" Kove Armageddon U2 is 9.5 Inches. What is the minimum amount of depth, in inches, the box can be? because I read somewhere before you have to have at least, a certain amount of room behind the magnet for the sub to function properly. Does anyone know the least amount needed? would it be like 3-4 inches? I am working with a rather small trunk.

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[x2o 10+ year member]

The mounting Depth of my 18" Kove Armageddon U2 is 9.5 Inches. What is the minimum amount of depth, in inches, the box can be? because I read somewhere before you have to have at least, a certain amount of room behind the magnet for the sub to function properly. Does anyone know the least amount needed? would it be like 3-4 inches? I am working with a rather small trunk.

Does that sub have a pole vent?

IIRC, you should leave about 4" behind a pole vent. If it's a solid pole then it shouldn't matter, as long as the box is not flexing and causing the panel to hit the bottom plate, as that would sound terrible.

 

[Jh8909 10+ year member]

To be truly honest im not sure what a pole vent is exactly. but this is the back of the Kove

 

[plugitin 5,000+ posts]

try for atleast 3 inches of clearance...

 

[Jh8909 10+ year member]

ok so Im looking at about a minimum of 14 inches deep including the mdf. ok cool thanks!

 

[SicAudio 5,000+ posts]

whatever the pole vent diameter is, is the minimum space you need so if it is 3" then 3 or more is what you need.

 

[Bobby322 10+ year member]

^^ x2

I read that you need however many inches the diameter of the vent is of clearance. I have a Treo SSX 15'' and I had it right at the back board of the box and after a few weeks its just busted the board off and sounded horrible until I ran more screws into it //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Jh8909 10+ year member]

lol ok cool. and yeah sister sub basically. so alright. 3 Inches is what im shooting for. its gonna be a tight squeeze! I only have 18" of height in my trunk. lol

 

[Bumpin' Goalie 10+ year member]

you could always invert the thing with the magnet and motor sticking out the box. will allow you to go slightly less deep and still have it vent properly

 

[Jh8909 10+ year member]

Thats true. I was thinking of that however like i said im working with a rather small trunk, and the way im thinking now is that i may have to have sub up instead of facing front because of the space issues.

 

[plugitin 5,000+ posts]

you going to seal the trunk off from the cabin when firing it fwd?

 

[Jh8909 10+ year member]

Is that a question or are you telling me that? and to be truly honest, It's my first time building a box so I am really not 100% positive on what I'm doing. I'm just trying to figure out a way i can fit it in because my back seat does not fold down so I have to slide it in through the trunk opening which is killing me with how deep it can be. too long and it will only ever fit halfway in. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[Bumpin' Goalie 10+ year member]

you can build it into your trunk. just use wood glue and bracing and you wont even need to get a drill in there.

lay down some covering to protect interior. put wood in piece by piece. build. brace. pull out covering.

or fire sub up. if you fire it up i recommend at least a little bit of sound deadening on trunk lid. shuld only cost ~20$ to cover it decently

 

[Jh8909 10+ year member]

I have a double layer of fat mat on my trunk lid and one layer around the trunk. and glue alone would seriously hold it up just fine? with 2500 RMS? sounds to me like it will break apart on the first hit.

 

[plugitin 5,000+ posts]

Is that a question or are you telling me that? and to be truly honest, It's my first time building a box so I am really not 100% positive on what I'm doing. I'm just trying to figure out a way i can fit it in because my back seat does not fold down so I have to slide it in through the trunk opening which is killing me with how deep it can be. too long and it will only ever fit halfway in. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

if you face the sub fwd, you will want so put sub and port fwd, and seal the trunk off from the cabin. otherwise, pointing sub and port back is the best for trunk cars