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Building a box for a single SD-2 8...1/2" or 3/4"


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Decided to give a single (for now) SD-2 8 a try in the hatch of my Subaru Crosstrek. I'll be feeding it 650ish watts at 2 ohm. Trying to keep the box as small as possible which is why I decided on this sub and the budget only allows one at the moment. Anyways...do I need 3/4" mdf for the box or will I be ok with 1/2"?

I'm working on designing my first box so it's all new and a bit overwhelming even though this will be a super simple tiny box...probably wedge shaped so it'll fit against the back of the rear seat. But I have a question that will dictate how I build the box....what would the best firing angle be for my sub? Straight back, angled towards the back glass, straight up, ect...there is no rear deck or anything that will cover the cargo area of the car, at least when I'm driving and playing music.

If anyone can help me some with this build, I'd greatly appreciate it.

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when your sub flexes so does your box, the thicker the MDF(or whatever you fancy). the less flex in the box. its a better environment for your sub. I dont know how much space you have in your vehicle but i would suggest leaving space so the sub doesnt slap on anything. Im not sure what the actual number is but i believe you need to keep the sub the radius of it, away from the wall its being fired at. so if its an 8, give it 4 in of space if possible. Im no doctor tho.. the farther the space from you and your sub will allow it to resonate more and sound better. facing back is usually ideal, except on SPL builds.

Edited by blanestudly
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Id bet you could get away with .5 but I wouldnt do it. Mainly because thats a waste of a sheet. I always use .75

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Id bet you could get away with .5 but I wouldnt do it. Mainly because thats a waste of a sheet. I always use .75

.75 is usually good for most builds. it IS an 8 after all.

oh thanks for the education. Ive never done this before and just repeat what ive read on the internet

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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Id bet you could get away with .5 but I wouldnt do it. Mainly because thats a waste of a sheet. I always use .75

.75 is usually good for most builds. it IS an 8 after all.
oh thanks for the education. Ive never done this before and just repeat what ive read on the internet

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SA-8 v2 3/4"
SD-2-8 1/2"

Most 8's you can get away with 3/4" baffle with the rest of the box 1/2".
But always remember. If you half-ass your box it will fall apart or sound like crap.

And for you haters out there. I put RF HE-2 8's in 1/2" boxes where they lived for 6yrs. with zero problems. So if 1/2 will support HE's, it will support SD-2's.

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