Hi all,

My first post here
Has anyone here allready built the WO36x36 in a METRIC version?

I mean: I can't just walk up to my local woodshoppe, and ask the poor bloke to cut me a piece of 19.05 mm thick plywood of MDF (what should I choose, btw) of exaclty 914.4 x 914.4 mm, and some pieces of roughtly 1m x 304.8 mm, right?  ???

I'd say: make it 19mm thick (or 18mm), 91.5 cm wide/deep, and 31 cm high, but who am I to say such a thing?

Anyone?

Regards, Paul

[quote author=Adrian D.  link=1152701860/0#1 date=1152725707]well, you can tweak with the size a bit, when dealing with such a thing.
i built a deathbox from 18mm particle board.
i tend to increase the size. let's say you have 914.4mm. i'd make it 915mm.
[/quote]

3.75 inch = 9.525 centimeter
when it is .5 inch then 14MM is close enough
0.708 661 417 inch  = 18 millimeter
That pretty darn close
go for the 18 MM not smaller just as Adrian says
we use metric but the lumber yard always talks imperial.

glad you managed to build it.
imo, it's a good thing to round every edge over which there is air flow.

Hi,

Well.... finished!!! (For as far as DIY stuff can actually be 'Finished'..)

Bought some 'el cheapo' stuff for a start, don't feel like spending a lot of ca$h on this project for now, I can allways upgrade later.
So I got myself 2 sphynx-audio SP-W10-SONO 10"-ers, and a very cheap AM5080 plate amp of some some chinese make.

Fit the woofies on the single thickness baffle I had the 8"ers in, facing the 'ported' chamber.
Didn't bother to put the lid on yet, just made it face down on the carpet.

Wow! I was very happy when I turned the volume dail... down that is!

Played, or rather fooled around a bit, with this beerglass+water and the dark side of the moon CD: jumpy! (Just made that to show the thing to my friends over in the Netherlands)

My god, that was fun! I mean the pressure created in the chambers is able to lift the 40-something kilos this thing weights!

okay, that was fun.... Started to really listen a bit, after putting the lid on with some 60 4*40mm screws.
I cant help but finding that I sort seem to hear some resonance... stuck the wires to the cabinet with caulk, nope: still there.

Note that I didn't put the two little braces in (Forgot to saw them, I'll do that tonight, after work) Would that help?

The two 'ports' are not quite exactly a) perfect, nor b) equal. Should I arrange this, so they're exactly 3.18cm (1.25") ?
Would that help cutting of the higher freq.'s?

Regards, and happy WO-ing, Paul

Listen to 60!
that was the best advice I ever got and it applies to the WO and WO32.
night and day with the WO32. it is 4 inches off the floor in a corner and in my case boxed in ontwo sides and the the sofa ( three inches air space for the WO32 and open on one end to the room.
No word of a lie that it tripled the sound ( as far as the ear goes that is) and never was boomy.

it really worked for me in this case.

jj420,

yeah, that was fun!!! (Note: One shouldn't mess with liquids on MDF, wipe clean right after!)
Without the water, the glass didn't last so long on the WO, so....  :D

Now, placement: As you can see, the way it's located in the video has a very low WAF....
I've placed it (you can't see the spot on the video, pity...) in the left corner of the room, on the floor for now, 'horn'  faceing ceiling, allmost against the wall (skirting + some wires are bothering) with one of the square sides, and about 25 out of the corner with the other side (Note: There's a central heating radiator in that corner)

What should I try: Lift it off the floor some 10cm, or make it face the corner (Thus 'hitting' the radiator) ?

Other question, nothing to do with placement: I've measured, in room that is, the box with a mic just over it, placed like I described before, with FuzzMeasure (osX), and found some oddities:

a) With the sub-Amp (AM5080 el cheapo) XO-ing @ !50 (Way to high) Big Fat bump (> +6dB) @ 35 & 100Hz, than normal downwards, and a huge bump @400Hz....
b) XO @ 50Hz (' normal') still a 'camelback': @35 & @100 okay, but some dip in between, and again this bump @400Hz..

like this: (Sod the 20Kz peak)


Ow, and, er, yes: Some of the speaker's params:
(Told you, really el cheapo)
92dB
Fs = 34Hz
Qms = 3,24
Qes = 0,52
Qts = 0,45
Vas = 145 liters

Should I Mod the case to adapt to this, and get a better response?
Thanks, Have fun,

Paul