[sub_junkie]

I am probably going to get the IXL 18.2.2 when they are back in stock...
But until then, I wanted to see what you guys thought about my planned box dimmensions.
It will be 7 cu.ft tuned to 17.99hz so the port lengths can be a quarter multilple like .75 or .25.

The box needs to be the same depth and width to fit in the corner of my room to clear the furniture.
Just to make sure, the 19 inch depth and width are external dimmensions and not internal, correct?

Here is the port lengths and volume:

You need to multiply the port volume 524.6459731494955 (yes, that is the actual number it has) by three due to the three 4 inch ports at 41.75 inches long to keep the tune the same.

And, here is the bracing:

You will need to multiply 54 cubic inches by 2 becuase I was thinking that 2 of those braces would be sufficient? Do you think that I will need more braces or just different dimmensions for them?

Would you guys recommend anything else for me to change? I am not sure how much bracing I would need for this box, so I am hoping someone could help me out there.
Would I need to secure the ports to the bracing? If so, should I just change the bracing number of cutouts to 2 and then just drill a hole big enough for the three 4 inch ports to fit through? Also, I would have the ports exiting through the top of the box...if I changed the cutouts to 2, I would have to change the heighth of the box to compensate for the extra volume taken up. The driver will be down firing. (I'm assuming that the driver will fit with a base plate?) The box will have 1 inch square legs with a <probably> one inch thick baseplate screwed into the legs.

I am open to any suggestions you guys have.

Thank you

 

[sub_junkie]

Here is another possibility for the box dimmensions:

I would like this one more becuase I will be able to make legs that can fit on it better possibly.

Here is the other bracing:

You will need to multiply 169.5 by 2 due to the two braces. Two cutouts so I can drill holes for the three 4 inch ports. Both of the braces will have the 2 cutouts, and the three holes drilled in them.

Thanks and I am open to any suggestions

 

[sub_junkie]

Nope...I will have the money in about 2 months. And, it won't be like my other thread. In the other thread, I went from being suggested the Dayton 15" HF to the Mach 5 IXL 18.2.2. If I wouldn't have asked the questions, I would have ordered the Dayton.

Thanks

 

[sub_junkie]

Jugix, what frequency was that taken at? Just a movie or music, or a test tone?

Thanks

 

[sub_junkie]

If I don't have the money and therefore can't get the IXL, I will get the Shiva-X or the Tempest, depending on the price differences between the two.
I can essentially use the same size box for the Tempest, Shiva, and the IXL, just would have to change out the bottom piece of wood, but that's if I just use screws, which I think I will. I will use glue also, but not to seal the bottom piece to the rest of the box.

Thanks

BTW Jugix, nice results on your build :T

 

[sub_junkie]

Ah, I forget to edit my post before I left...I would have added the budget part though. My bad

Do you think that the braces are adequate enough? Also, would it be alright to just have two 8.5in wide and long cutouts and just cut the needed holes for the triple 4 inch ports?

Thanks for the help

 

[sub_junkie]

OK.
Would it be alright to just run two free ends on each port? In WinISD it says that the Port Velocity is the same when I go from two free ends, to one flanged end, to two flanged ends.

Thanks for the help

 

[sub_junkie]

So, not having the two flanged ends would create port noise or chuffing?

Thanks

 

[sub_junkie]

In WinISD, with three 4 inch ports 42.20 inches long and with two free ends, the port velocity is at 19.43m/s at 16hz. Is that too high to run Free Ends? I have heard to keep the air speed below 21m/s, so I wanted to check.

Thanks

 

[sub_junkie]

Oh, that would suck. I will call them tomorrow and see if they have any price jumps expected for the IXL 18.2.2. :T


Thanks for the help

 

[sub_junkie]

Acutally, those were my two driver choices
It mostly depends on which is cheaper, or if one performs much better than the othe for the extra money. I think I would rather go for a 15" in my room, so my dad doesn't think that it will be really crazy, but that 15 is just as good as the IXL 18 :bigsmile:

Thanks, and I will just go off of what Kevin recommends in the Application Notes for a box size and dimmensions :T May have a few questions on bracing though. I'm anxious to see the new driver model in WinISD...

 

[sub_junkie]

Ok, thanks for that.
I think I will wait until the Generation 2 Tempest-X's come out though. Unless they are too expensive, then I will get the one of the ones for sale here. Also, I need to get some surround speakers, so I will just get those now, and hopefully will have enough money saved to still get the Tempest-X or IXL 18.2.2

Thanks for the help

 

[sub_junkie]

No, lol I'm still getting the sub. Just waiting until the new ones come out to see how much they are. I can still buy the sub too :T
The surrounds are just $75 with shipping and all the parts I needed, so it's not bad at all. It's the "Vifa 2nd Recession Busters Kit" from Madiosound. Includes everything, so I don't have to worry about all of that :T

Thanks for the help everyone

 

[sub_junkie]

You are correct! I will try to start building the box soon, and just make a bottom "plate" where the driver goes the correct cutouts for both the Tempest-X and the IXL 18.2.2.

I don't know, maybe I will save the money that I was planning on spending on the surrounds, and just spend that on the box. About how much do you think the planned box will cost? I have absolutely no idea, so I am hoping you guys will :T
Is there a program that gives you a idea of how the cutouts should be on the wood? Like it shows a diagram of each piece of wood you would need, and placed it so you can see how many sheets you would need? I'm sorry if that confused you guys That's the only way I could explain it...

Thanks for the help everybody.

 

[sub_junkie]

Would this be what I would need to get? Should I keep it at 3/4th inch, or just go for 1 inch, and no bracing?


http://www.lowes.com/lowes/lkn?action=productDetail&productId=37461-46086-LBR-37461&lpage=none

Thanks for the help

Edit: dgilme, thanks for that. Now I know what I need to get for glue Thanks for the prices also, it's a big help. I will hopefully be able to head down to Lowes sometime next week once I get back from California.

 

[sub_junkie]

OK, 3/4th inch it is. :T
How far away from the bottom of the box or driver does the ports have to be?

Thanks

 

[sub_junkie]

OK, so I'm guessing that having the ports around 7 inches away from the bottom of the box will be okay? But, how far away from the driver do they have to be? Since the driver is around 9 3/4th inches tall, wouldn't the ports not fit? Would there be a way that I could 90 degree them near the top and have going out the back of the box? Or, would that create port noise or chuffing?? I really need help on this. I have no clue about it. Sorry for all of those questions again, I just now thought of the ports not fitting...


Thansk for the help everyone.

 

[sub_junkie]

I am. But, they don't give you how long to make the ports, just the tune. So, I need to know how I can fit the ports in the box that I had planned. I could go 18x18x55, but then I would need at least two sheets of 19x19x97 mdf. So, my question is, can I put a 90 degree tur in all of the ports?


Thanks

 

[sub_junkie]

OK, thanks Mike. I couldn't find your build. I have seen it before, but can't find it now. Can you link it or tell me the name so I can search for it?

Thanks for the help

 

[sub_junkie]

Oh, duh I didn't even think of that...sorry
That's where I found it the first time :T

Thanks