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View Full Version : anything better then mdf??



Foote11
02-17-2012, 03:54 PM
this isnt a real world application im just wondering what els can be used for a enclosure besides MDF with good results... plexiglass thick steel.. some hardwood?? what would be the best for a sub enclosure??

JimJ
02-17-2012, 03:55 PM
13-ply plywood.

VisceralSound
02-17-2012, 04:05 PM
Birch Plywood (not sure if thats the same as 13ply)

SikFly
02-17-2012, 04:22 PM
Birch is the only other main one i'm aware of that is commonly used

pr-festiva
02-17-2012, 04:27 PM
if everything goes right one of my upcoming builds will be useing mic-6 aluminum plate.Its very smooth on the one side so i wont have to glass but its impractical due to weight, cost and difficulty of working with it.Its an all or nothing build how ever so im giving it a shot.

Kangaroux
02-17-2012, 04:29 PM
You can use the cabinet grade ply at lowes (aka Arauco ply, costs around $30 a sheet). For higher quality stuff you want to use birch ply which costs around $45 a sheet, and for absolute quality you want true baltic birch which iirc only comes in 5x5 sheets and costs an upwards of $100.

cx-7heaven
02-17-2012, 04:34 PM
Birch ply ftw. Slightly higher price than mdf (~$6/sheet) but around 1/2 to 2/3 the weight, much stiffer, and a whole lot less sawdust mess.

Foote11
02-17-2012, 04:59 PM
if everything goes right one of my upcoming builds will be useing mic-6 aluminum plate.Its very smooth on the one side so i wont have to glass but its impractical due to weight, cost and difficulty of working with it.Its an all or nothing build how ever so im giving it a shot.

im actually really curious about metal boxes iv always wonderd how they would sound i feel like theyll flex alot but bounce sound off amazingly but im just a newb :3 you gonna have a build log for it or anything? id like to know how itll turn out

brodeisel
02-17-2012, 05:03 PM
never herd or seen a metal box in for discussion

BrownVanMan
02-17-2012, 05:08 PM
metal would need so much bracing and/or thick plate to keep it from flexing that it would weight a metric a$$ ton

Chaotic_Thought
02-17-2012, 05:11 PM
I recall seeing a build on here once where a guy built a normal MDF box and lined it with 1" marble.

05trailblazer
02-17-2012, 05:12 PM
metal wouldnt sound good i remember somebody saying something about the response wouldnt come out right and as far as anything beig better than that would be birch wood but i think mdf sounds better as someone else in another forum compared both of those materials..

sobe3yourself.
02-17-2012, 05:15 PM
concrete box?

jeremyg1
02-17-2012, 05:24 PM
I recall seeing a build on here once where a guy built a normal MDF box and lined it with 1" marble.

I bet that was nice and light.

Nut Hair Trick
02-17-2012, 05:45 PM
I've been saving my used rubbers and plan on doing a 4th order blow thru soon.

cyn
02-17-2012, 05:49 PM
Ive seen a custom box for home audio made from some sort of granite / marble and lined on the inside with some sort of japanese hardwood can't remember the name of it. I think the granite / marble was more for the look to fit into the fireplace that it sat by tho more than anything else. Was about 3x3 and the top was made to look like a table .. wierdest one i've seen tho in person.

pr-festiva
02-17-2012, 05:54 PM
im actually really curious about metal boxes iv always wonderd how they would sound i feel like theyll flex alot but bounce sound off amazingly but im just a newb :3 you gonna have a build log for it or anything? id like to know how itll turn out
metal wont flex like people think it will unless some one builds a box with sheet metal insted of plate.i'll be using 3/4'' plate as a shell with 1X1.5'' ribs on the out side then i'll work in from there till i get it loud.I'll be doing a build log so every one can see the pain in the *** its gonna be.

groundpound4200
02-17-2012, 05:57 PM
Everything >>> MDF

I hate that **** except it does roundover nice.

pr-festiva
02-17-2012, 06:00 PM
metal wouldnt sound good i remember somebody saying something about the response wouldnt come out right and as far as anything beig better than that would be birch wood but i think mdf sounds better as someone else in another forum compared both of those materials..
im going for pure SPL so sounding good isnt going to happen any way.I dont think a box made out of the right metal would make it sound bad but who knows

SikFly
02-18-2012, 11:44 AM
sounds heavy. *** gas mileage right.

wenn_du_weinst
02-18-2012, 12:13 PM
bamboo
glass
stone

all in the top 5 materials for box building. Also the heaviest and most expensive.

---------- Post added at 11:13 AM ---------- Previous post was at 11:12 AM ----------

and metal may not flex but is sure as hell resonates.

thehardknoxlife
02-18-2012, 05:22 PM
bamboo
glass
stone

all in the top 5 materials for box building. Also the heaviest and most expensive.

---------- Post added at 11:13 AM ---------- Previous post was at 11:12 AM ----------

and metal may not flex but is sure as hell resonates.^ this. A metal box is the worst thing you could do.

There is a reason almost everyone uses MDF. It's cheap, very dense, and easy to cut.

05trailblazer
02-18-2012, 05:45 PM
sounds just about right^^

wenn_du_weinst
02-18-2012, 05:45 PM
I think you could have ended that post after ''it's cheap''

chillin
02-18-2012, 05:56 PM
Fiber glass

pr-festiva
02-18-2012, 10:35 PM
bamboo
glass
stone

all in the top 5 materials for box building. Also the heaviest and most expensive.

---------- Post added at 11:13 AM ---------- Previous post was at 11:12 AM ----------

and metal may not flex but is sure as hell resonates.

so i take it youve been in a car that used 3/4'' mic 6 plate aluminum for a box? im guessing that most people on here are going off of some guy that built a box out of sheet material not plate. If it fails i'll just scrap the box,,, try that with ply wood :)

FlexnInLa
02-18-2012, 10:38 PM
Baltic Birch baby, and no MDF boogers the day after you cut it!

thehardknoxlife
02-19-2012, 12:06 AM
so i take it youve been in a car that used 3/4'' mic 6 plate aluminum for a box? im guessing that most people on here are going off of some guy that built a box out of sheet material not plate. If it fails i'll just scrap the box,,, try that with ply wood :)I don't think he was basing his post on anyone. It's pretty common knowledge that metal resonates very easily, which is why no one makes enclosures out if. When making a system for SPL or SQ the idea is to stop the vibrations, not create them.

MIC 6 Aluminum is a cast metal. It would be better than hardened aluminum as far as resonance goes, but is still not very practical. It's easy to crack and screw holes strip extremely easily. On top of that it cost $100 for a 12"x 12" x 3/4" piece, which would bring less than $10 at a scrap yard.

FlexnInLa
02-19-2012, 12:12 AM
Concrete would make the "best" box probably.

J31Rob
02-19-2012, 12:30 AM
13-ply plywood.

Juuust about unpossible in 3/4". I however did have some 17 or 18 ply 1" Chinese Poplar recently.


Birch Plywood (not sure if thats the same as 13ply)

Ply = layer


Birch is the only other main one i'm aware of that is commonly used

..but isn't somehow the best. Any AA/AB/BA/BB even BC grade plywood would do fine. There are better price:performance ratios out there than birch. It's not some God species.


You can use the cabinet grade ply at lowes (aka Arauco ply, costs around $30 a sheet). For higher quality stuff you want to use birch ply which costs around $45 a sheet, and for absolute quality you want true baltic birch which iirc only comes in 5x5 sheets and costs an upwards of $100.

Chaching. This guy knows. Baltic still isn't somehow God wood either, but it's definitely proven to be a good choice.


Birch ply ftw. Slightly higher price than mdf (~$6/sheet) but around 1/2 to 2/3 the weight, much stiffer, and a whole lot less sawdust mess.

Yeah not true. :p


I recall seeing a build on here once where a guy built a normal MDF box and lined it with 1" marble.

snoopdan. I saw it in person @ MECA Finals in 06 or 07. It was for a neo TC Sounds 5200 on an Adassa Warlord IIRC. Did amazing numbers for a no wall / stock class.


I bet that was nice and light.

No different than people putting walls in their vehicles. I don't think it was 1" either. I could be wrong though.


Concrete would make the "best" box probably.

Whatever resonates bro.

Rich B
02-19-2012, 12:33 AM
Sonotube for concrete forms is probably one of the best for non resonance.

http://www.dvdplaza.fi/galleria/data/954/0003.jpg

FlexnInLa
02-19-2012, 12:48 AM
Juuust about unpossible in 3/4". I however did have some 17 or 18 ply 1" Chinese Poplar recently.



Ply = layer



..but isn't somehow the best. Any AA/AB/BA/BB even BC grade plywood would do fine. There are better price:performance ratios out there than birch. It's not some God species.



Chaching. This guy knows. Baltic still isn't somehow God wood either, but it's definitely proven to be a good choice.



Yeah not true. :p



snoopdan. I saw it in person @ MECA Finals in 06 or 07. It was for a neo TC Sounds 5200 on an Adassa Warlord IIRC. Did amazing numbers for a no wall / stock class.



No different than people putting walls in their vehicles. I don't think it was 1" either. I could be wrong though.



Whatever resonates bro.

I'd think concrete would be dead as ****.

J31Rob
02-19-2012, 12:49 AM
You think concrete would be dead? Alright.

FlexnInLa
02-19-2012, 01:23 AM
You think concrete would be dead? Alright.

Have you built a box of concrete? Does it resonate me? Hell I don't know enlighten me.

J31Rob
02-19-2012, 01:28 AM
No, I haven't. Not quite sure why we're trying to "resonate you" but I don't get down like that.

FlexnInLa
02-19-2012, 01:34 AM
No, I haven't. Not quite sure why we're trying to "resonate you" but I don't get down like that.

Sorry, drunken typo. So you are saying a concrete box would resonate more than an MDF box?

FlexnInLa
02-19-2012, 01:36 AM
Sonotube for concrete forms is probably one of the best for non resonance.

http://www.dvdplaza.fi/galleria/data/954/0003.jpg

Neat looking sonotube! Yours? I've heard a couple and they were pretty awesome in HT.

J31Rob
02-19-2012, 01:39 AM
Sorry, drunken typo. So you are saying a concrete box would resonate more than an MDF box?

No, that isn't what I said.

Rich B
02-19-2012, 01:41 AM
Neat looking sonotube! Yours? I've heard a couple and they were pretty awesome in HT.

No, just a pic I found to give as an example.

Im not that skilled!

FlexnInLa
02-19-2012, 01:43 AM
No, just a pic I found to give as an example.

Im not that skilled!

Woodwork on that thing is dead smexy! The ones I heard weren't near as purty.

FlexnInLa
02-19-2012, 01:44 AM
No, that isn't what I said.

OK I'm confused as to the point you were making. Not trying to be a douche, but wouldn't concrete be less resonant than other materials mentioned, therefore better?

JimJ
02-19-2012, 01:55 AM
Juuust about unpossible in 3/4". I however did have some 17 or 18 ply 1" Chinese Poplar recently.

Even in 5'x5'?

I went with 7-ply for the BIBs, and ended up with 3 layers, though :p:

globalminds_ent
02-19-2012, 02:30 AM
concrete is used in studios to absorb bass. We float the floor with a layer of concrete so if some one is under you they won't hear it so concrete idk it absorbs sound to well u want the sound to actually go through the box