DIY Subwoofer Risers

[progers13]

Feet holes drilled and installed
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Final product!
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Riser in its new home (waiting for the new sub to arrive)
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Shot of the matching first riser I built, with matching eD A2-300 sitting atop the throne
DSC01521.jpg


The front soundstage (minus the incoming 2nd eD A2-300 sub)
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[crazyBLUE]

Originally Posted by progers13

Materials
Attachment 9597


Measuring for screw holes
Attachment 9598


Drilling the screw holes
Attachment 9599


Legs attached
Attachment 9600


Top and bottom attached with 4" polyfill in the middle
Attachment 9601

Looks great so far progers . Its an original design I see . I like that . need more pics when its done !!

[crazyBLUE]

Originally Posted by progers13

Feet holes drilled and installed
Attachment 9607


Final product!
Attachment 9608


Riser in its new home (waiting for the new sub to arrive)
Attachment 9609


Shot of the matching first riser I built, with matching eD A2-300 sitting atop the throne
Attachment 9610


The front soundstage (minus the incoming 2nd eD A2-300 sub)
Attachment 9611

Great job progers are you going to leave it where its at ?

Wow , Both subs right in front , That will rock . You may not even hear your fronts when you get the other ED !!

[progers13]

Originally Posted by crazyBLUE

Great job progers are you going to leave it where its at ?

Wow , Both subs right in front , That will rock . You may not even hear your fronts when you get the other ED !!

Yeah, with the layout of the room it was the only real option. Down the road when I'm able to have a dedicated room instead of my living room I will set them up differently. But for now it will do.

[Big Daddy]

Good job progers13.

[progers13]

Originally Posted by Big Daddy

Good job progers13.

Thanks BD, and thanks Crazy

[crazyBLUE]

Originally Posted by progers13

Thanks BD, and thanks Crazy

Thanks for the pics progers I'm tearing my 10" apart right now ~ You need A driver

[Beerserker]

Is that a contour pillow you are using???

Looks like it anyway. This is why I love the DIY threads.

[progers13]

Originally Posted by Beerserker

Is that a contour pillow you are using???

Looks like it anyway. This is why I love the DIY threads.

Actually, yes! lol I went to Walmart and Michaels yesterday. Would you believe I couldn't find just straight polyfill? My last riser I used sheets of polyfill. This time I found a pillow stuffed with polyfill, so I just stuffed the pillow in there! DIY projects...gotta love 'em

[Beerserker]

Oh it is polyfill in the pillow. I thought it looked like a memory foam one, that is why I was .
Ya, using polyfill pillows is quite common and actually cheaper then just the polyfill alone. My sub build will be employing the fabulous walmart $2.99 deep pocket pillows inside the box.

Congrats on the successful riser build.

[progers13]

Originally Posted by Beerserker

Oh it is polyfill in the pillow. I thought it looked like a memory foam one, that is why I was .
Ya, using polyfill pillows is quite common and actually cheaper then just the polyfill alone. My sub build will be employing the fabulous walmart $2.99 deep pocket pillows inside the box.

Congrats on the successful riser build.

Yeah it does look like that because of the design, and they had several different types. I chose one that said it contained polyfill. It was $6.99.

And thanks. They're always fun projects!

[tbizzle]

Those look badass man. I need to get crackin on this and make my own. I'm going to get this table from Ikea, hopefully this week. I'll cut some pieces from an old memory foam mattress topper and stack them underneath, put a piece of black carpet on top and then wrap the table with some black fabric

[progers13]

Originally Posted by tbizzle

Those look badass man. I need to get crackin on this and make my own. I'm going to get this table from Ikea, hopefully this week. I'll cut some pieces from an old memory foam mattress topper and stack them underneath, put a piece of black carpet on top and then wrap the table with some black fabric

What are you waiting for? Get to it!

[crazyBLUE]

Originally Posted by progers13

What are you waiting for? Get to it!

I second that t

[Steve]

Ok, I'm thinking about tackling a project to build a riser for my MFW-15, but I have a few questions first.

1: My MFW-15 doesn't have any feet on it whatsoever. Right now it's sitting down directly on my carpeted floor. Is it alright for it to sit directly on the riser or is it beneficial to have some kind of feet on the sub?

2: Is there any special kind of carpet that should be used? I have some leftover carpet from when my house was built that would be more than enough. Is that Ok to use? I think it would be kind of cool for it to match the floor it will be sitting on, plus it's something I wouldn't have to buy.

3: Does the riser need to be closed on the bottom? Judging from the pics I'm seeing of some of the designs throughout this thread I'm guessing the answer to this is no, but I just want to make sure first.

4: I see above someone mentioned simply stuffing a pillow inside a riser as the foam? Is this as good as any other kind of foam?

5: My initial idea is to build the riser so that my sub will overhang it very slightly, say less than 1/4" on each side. With the carpet on this probably won't even be noticeable. Is this alright, or should it be larger than the sub? If so, why?

Thanks to anyone who can help steer me in the right direction here.

[Fors*]

Originally Posted by fireman325

Ok, I'm thinking about tackling a project to build a riser for my MFW-15, but I have a few questions first.

1: My MFW-15 doesn't have any feet on it whatsoever. Right now it's sitting down directly on my carpeted floor. Is it alright for it to sit directly on the riser or is it beneficial to have some kind of feet on the sub?

If you can add legs, it will add some add'l help, as you are further seperating and isolating the sub.

2: Is there any special kind of carpet that should be used? I have some leftover carpet from when my house was built that would be more than enough. Is that Ok to use? I think it would be kind of cool for it to match the floor it will be sitting on, plus it's something I wouldn't have to buy.

Not really, but the softer and thicker it is, I would assume would help to further absorb the low frequencies instead of reflecting them.

3: Does the riser need to be closed on the bottom? Judging from the pics I'm seeing of some of the designs throughout this thread I'm guessing the answer to this is no, but I just want to make sure first.

Again, I think this is a matter of preference and more to do with aesthetics if you ask me.

4: I see above someone mentioned simply stuffing a pillow inside a riser as the foam? Is this as good as any other kind of foam?

Big Daddy suggests poly-fill from within pillows to stuff in a sub, but as far as a riser, I don't think it matters. I would tend to believe that any kind of foam would help, as long as the area is not over-stuffed.

5: My initial idea is to build the riser so that my sub will overhang it very slightly, say less than 1/4" on each side. With the carpet on this probably won't even be noticeable. Is this alright, or should it be larger than the sub? If so, why?

I would make it a bit wider, but that is more for added stability than anything to do with aesthetics or performance. I would think you would want the riser a small bit wider than the sub itself.

Thanks to anyone who can help steer me in the right direction here.

I hope some of the info above helps fireman!

[Steve]

Originally Posted by forsberg21

I hope some of the info above helps fireman!

Thanks for the response forsberg. I got to thinking about it and I think I'm going to take this approach rather than buying a GRAMMA. My dad has all the tools I'll need to use for it that I don't already have, and it'll be simple to build and I think even a little cheaper than the GRAMMA. I'm also thinking about getting my sub up a bit higher than a GRAMMA would which apparently won't hurt either.

[Fors*]

Originally Posted by fireman325

Thanks for the response forsberg. I got to thinking about it and I think I'm going to take this approach rather than buying a GRAMMA. My dad has all the tools I'll need to use for it that I don't already have, and it'll be simple to build and I think even a little cheaper than the GRAMMA. I'm also thinking about getting my sub up a bit higher than a GRAMMA would which apparently won't hurt either.

Check out one of my galleries, I have pics of when I built the riser for my cylinder sub.....I got everything at Lowes. Definitely look into the leg mounts and legs, it makes it soooo easy to build them.

[Steve]

Originally Posted by forsberg21

Check out one of my galleries, I have pics of when I built the riser for my cylinder sub.....I got everything at Lowes. Definitely look into the leg mounts and legs, it makes it soooo easy to build them.

That turned out really well. I've seen pics of it in your other gallery but I never looked through the building phase pics of it. That was a great idea using a round cutting board. That probably saved you some trouble.

I have an idea for what I want to do in my head, and it's very simple. I'm just going to cut four pieces of 2x6 or 2x8 to length and screw them together into a rectangular frame and then screw a piece of 3/4" MDF or plywood on top of it that will overhang 1" on all sides. Then I'm going to cover the entire thing in carpet, put some kind of feet on it and fill it in with foam. I'm not sure yet on using polyfill or some kind of solid foam that I would have to glue in in layers. It'll probably have to be something solid so I can glue it in in layers since I'm planning to leave the bottom open. I'll have to buy the MDF/plywood, 1 board, 4 feet, screws, foam, and adhesive for the carpet. I won't have to paint anything.

[Fors*]

Originally Posted by fireman325

That turned out really well. I've seen pics of it in your other gallery but I never looked through the building phase pics of it. That was a great idea using a round cutting board. That probably saved you some trouble.

I have an idea for what I want to do in my head, and it's very simple. I'm just going to cut four pieces of 2x6 or 2x8 to length and screw them together into a rectangular frame and then screw a piece of 3/4" MDF or plywood on top of it that will overhang 1" on all sides. Then I'm going to cover the entire thing in carpet, put some kind of feet on it and fill it in with foam. I'm not sure yet on using polyfill or some kind of solid foam that I would have to glue in in layers. It'll probably have to be something solid so I can glue it in in layers since I'm planning to leave the bottom open. I'll have to buy the MDF/plywood, 1 board, 4 feet, screws, foam, and adhesive for the carpet. I won't have to paint anything.

Sounds like a project for this weekend?