Subwoofer casing

>>1223004
You need to know what Vas it needs (volume of air space). That will be the number you start with when making an enclosure. As for "best" quality, that depends on what you plan on listening to. Lots of subs just need a sealed box but some benefit from 2nd, 3rd, or 4th order boxes. Those are more difficult to design and make, but not impossible.
You can use a smaller sealed box than the Vas, that requires using padding. Synthetic pillow stuffing in a pair of panyhose, glued inside the container. (it acts as a spring and makes the box "bigger").
read > http://www.diysubwoofers.org/
Also you need an amp that is sized for that speaker.

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>>1223004
>>1223016
>You need to know what Vas it needs (volume of air space).
This. Single biggest thing people overlook when building a box.

I've always done sealed boxes... small and effective, and ... i'm in a pickup truck, i'm not going for theater-quality sound.

Shoving poly-fill in the box can make the box "sound bigger" without increasing its actual volume, but shoot for getting actual volume first and tune with poly-fill.

3/4 MDF is what you'll want to use. Use sufficient wood glue to seal the joints.

>>1223167
This. Or maybe even 5/8 mdf if you plan to go big.

1. Gather as much data as you can about the chassis.
2. Download boxsim from visaton website
3. You can also Google for something like a Thiele small parameters calculator
4. Program or calculator spits out the volume of your enclosure and other useful data
5. Build enclosure
6. Be a happy camped

>>1226065
I forgot to mention you are going to need some sound dampening material that you stuff into your box.

>>1223738

>. Or maybe even 5/8 mdf if you plan to go big.

Every time I go past this thread I wonder why you would use thinner wood to go big. Or are you one of those Common Core people who can prove that 5/8 is thicker than 3/4.

what if I don't know anything about the speaker? I have two 16cm bass speakers pulled from a car and I want to build box for them. how can I measure VAS?

>>1226654
Look up the speaker, get datasheet.