Dimensions for sealed 18" sub box - Page 7

You're right, they don't use 1/8" bits to cut with. But the holes could still be marked. In the end I might be doing the roundovers on the front myself. I did that with the Overnight Sensations along with the chamfer behind the woofer.....no big deal.

If I do the roundovers, I can easily mark the center of the panel prior to running them down the router table. Actually, I was using a small shaper for the other roundovers. For these big boxes, I need to get a decent router table. Good excuse to buy some more wood working tools.

I've decided that the beefier boxes are probably going to either get a 2" thick baffle (using two 1" pieces) or a 1.75" thick baffle (using one .75" and one 1" piece of mdf). But if driver holes don't get removed, it's going to add a good 6-8 lbs to each shipping weight. At that point we're going to need 2 shipping boxes. That's why I'm thinking we really need some well build boxes that aren't too heavy, but also some heavy duty boxes for those wanting 100lb enclosures. You can start to see the number of box models getting bigger and bigger can't you???? The options are a bit crazy.

With 2 layers of .75", those big drivers would really only be attached to the bottom .75" layer which doesn't seem good enough. If the top layer is 1" thick and I recess the driver .75" into that panel, then it will be biting into both pieces and 1" worth of material.

This is the only thing I'm waiting on for the bigger boxes. Of course the problem is easy to see. Everything on the bigger boxes can be cut from one sheet except BOTH baffle layers. If we go with 1.75" thick baffles, we will be cutting into a second sheet of .75" and a sheet of 1" material. Just one more different option to figure out.



I realize this all seems simple....."Just cut some square boxes and pack them up." But it's not. These have to pass the 10 year old assemble test, easy to package and ship, and fit a large number of drivers. If we just needed one box size for one driver, that would have been done months ago. Regardless, many will be listed this week as promised. I've got quite a few right now.

I'm going to go to Parts Express either this week or Monday and take a bunch of different cutout sizes. Someone there should let me test fit a decent number of woofers. Then I can get the cutouts done with the CNC for "kits". And also have blank baffles listed too. That will cover everyone.

If someone needed me to cut a certain sized hole because they can't do it, I'm sure I could help with that.

What diameters do you normally use for the 15's and 18's Ricci?

I am mostly worried about the outer dimensions for the exterior baffle. That's where I might have to just cut them myself or get something like 15 of each diameter.


I talked to PE today and they'll let me check the cutouts with any open box drivers they have. So I'll try to get up there this week with some different baffles. Ideally they just let me take some home and I can return them after making sure the CNC cuts them correctly. I'm sure they have some returns they could loan me for a few days.

No need. I'm suppose to get some beefy 18" sub driver prototypes soon for testing. My guess is that they'll be shipped to Ricci and another forum member for testing.

I'm going to remove one of the braces from a box and see how it goes. It makes sense to try to have some standard boxes and then some beefed up boxes for guys that don't mind paying extra for shipping.



The trial shipping boxes came in today. I will be experimenting with packaging some up this evening. It looks like I'm going to have to cut the boxes down a little after I package these up. That kind of stinks, but it's hard finding strong boxes that aren't very deep. No big deal though.

I've figured out some rough prices and some are boxed up and ready to ship.

The 1.25 cu ft boxes with double baffles, bracing, roundovers, dados, rabbet joints, and recessed driver cutouts will be $52 each. They were $44 and then I'm figuring $4 for packaging material and I'm going to try and get my sister to box them up for $4 each. I'm going to be very busy once the SEOS waveguides come in and this is a small enough box that she could help with. I'll take care of doing the roundovers on the front so if you don't need them, let me know. They weigh around 30lbs or so. Shipping will be very reasonable with my FedEx discount to most of the country.

The following link is a box cut for the 10" Titanic from PE, but there will some with blank baffles available and also a model for the Reference line from PE and the TC Sounds as well. That should take in most 10" size drivers. I'm also going to try and get the front baffles for the 12" TC Sounds and 12" Reference line for this box.

Might also try a 1.75" thick baffle option.

http://www.diysoundgroup.com/flat-pa...flat-pack.html


The 2.25 cu ft box basically the same as above only larger is $75. This kind of stinks because I was hoping for it to be lower. The problem is that it still takes up a full sheet of mdf even though there is a little wood left over. But no other sub box parts fit in the left over area. They really should be $80, but I'm going to box these up for free myself to try and keep them at $75. If I can get the CNC company to cut something else with the left over wood, then maybe the price will come down a bit. Not sure what to do about that. Maybe some subwoofer feet? But I doubt anyone would buy those enough to lower the price of this box. I'll see what I can do. They weigh 40lbs so again, shipping will be pretty reasonable. Possible 1.75" baffle option as well.

http://www.diysoundgroup.com/flat-pa...flat-pack.html

Again, there will be different baffle cut outs for that box.


The 3 cu ft box will be around $95 because it will either dig into the 2nd sheet of mdf or get the 1" thick outer baffle making the total outer baffle thickness 1.75". Plus the double thick shipping box sample I bought cost $5.75 just for the box! There might be an option for a 2" thick baffle as well. Still working on photos for this due to the 1" mdf option. I'm going to try 2 cheaper shipping boxes versus one double thick and then tape them together.

http://www.diysoundgroup.com/flat-pa...flat-pack.html

4 cu ft will be "around" $115 because it will almost certainly have the 2" thick baffles. And will use 1 full sheet of 3/4" and a chunk of a 1" thick sheet. There might be a cheaper version and then a more expensive version. This box worries me a bit on shipping. It might need to be shipped in 2 separate boxes. That won't really add much to the shipping costs unless you live out on the West Coast, then 2 separate boxes might add an extra $20.



Right now I have about 60 total subwoofer boxes. I'm just waiting on the 1" mdf for the final shipping weights and total costs.


NOTE: The prices for the larger boxes are "around" that price. If you guys think it's high, I'll mention it and see if it can be changed at all. But I can't promise anything. For how these boxes are, I think the pricing does make sense compared to other flat pack prices I got on the smaller items.

I'm promised to receive some dual opposed box samples very soon along with ported designs.



I really need ideas on driver cutouts from forum members as soon as possible.

And I could really use some ideas for ported boxes and specific drivers. I'm not very good at subwoofer design yet and don't want to mess that up.

Anyone have some slot port designs or other ported ideas?


Also, if someone has EXACT cubic foot needs and general dimensions for a super beefed LMS box using all 1" material, please post it and I'll see what can be done.

One of the guys at PE is suppose to put me in contact with the person that deals with item returns. So I'm pretty confident that I can check all cut outs from anything that PE sells. I'm suppose to go up there some day this week after they gather things up.

Right now I'm going to check baffles for the following and get them made:

Dayton Reference 10", 12", 15"
Titanic 10", 12", 15"
LMS 10", 12", 15", 18"
Dayton 15" DVC385, 15" DCS-380

If any of you guys know optimal enclosure volumes for any of those models (and plate amps), please let me know so I can make sure we have specific drop in kits.



Here's the sealed boxes I'm shooting for:

1.25 cu ft
2.25 cu ft
2.5 cu ft
3 cu ft
3.5 cu ft
4 cu ft
possibly 5-6 cu ft.
possibly .75 - 1 cu ft?

dual opposed 2 cu ft for two 10's
dual opposed 2.5 - 2.75 cu ft (???) for two Dayton Reference 12's
dual opposed (????) for two 15's...what 15's?

Possibly two 10's or two 12's mounted vertically. But then again, which drivers, what size box?


The slight problem is 100 drivers and 100 box sizes. So while the general sizes above will be good, and blank baffles will also help, I think it would be great to have some enclosures designed specifically for a certain driver.


I've been scouring the vast interwebz looking for certain models that people really like and what box size they work best in along with amps, but that's not so easy because there's a lot of variation.


I'm completely open for any ported designs to match up with something. I really need to get all this figured out before the end of the month because all the waveguide stuff is coming then.

The small "warehouse" next to my landscaping business is starting to look funny! Flat packs and waveguides everywhere!

How much of a hit would they take around 5.75 - 6 cu ft and tuned around 18-20hz? For a 6 cu ft box using the slot equivalent of a 6" port, I'm getting about 35" long?

I'm thinking about shipping weight issues with a box that large and the extra pieces of wood for the slot port. Price would probably still be okay and just ship it in 2 packages. My Fed Ex rates have gotten pretty good.

24" wide would not be good because the CNC machines usually use a 3/8" or 1/2" wide bit and they also cut off the outer edges of the board. 22" - 23" would be better.