[Brett Hays]

The subject is subwoofer upgrade.

My Atlantic Technology subs (3 x 352PBM)just aren't doing it for me anymore. I love the rest of my Atlantic Technologies System 350 THX and it sounds great, but the bass lacks that 'feel it in your chest' experience. I suppose it's not surprising, they are only rated at 108db and down to 35Hz.. but I can tell you that playing a test tone anywhere below 50Hz there just isn't much there. It's hard to believe that meets THX specifications, but it apparently does. I was considering a pair of Klipsch R-115SW's but I am thinking DiY may be the way to go since my entertainment center is built in and appearance is not a consideration..

I'm good with tools, but would really prefer to start with a flatpack. I was looking at the Dayton Ultimax 15's but the cabinet kit they sell with them is about an inch too wide to fit at 19.25" wide

https://www.parts-express.com/denovo-audio-knock-down-mdf-30-cu-ft-subwoofer-cabinet-for-dayton-audio-15-ultimax-subwoo--300-7082#lblProductDetails

I have 18.5" of width and 21" of height available...

Can anyone recommend a flatpack cabinet kit that would work with my dimensions.. or even a different driver.. I'm totally open minded and plan to use an inuke6000 to drive them.. I just want to get similar performance to a pair is svs pb3000's from whatever combo I go with..

 

[LastButNotLeast]

Couple of these?
https://www.parts-express.com/dayton-audio-12-ultimax-subwoofer-and-cabinet-bundle--300-7096
Also, you want an amp with DSP or a separate miniDSP.
Michael

 

[Brett Hays]

Couple of these?
https://www.parts-express.com/dayton-audio-12-ultimax-subwoofer-and-cabinet-bundle--300-7096
Michael

Will two 12's give me the bass I am looking for? I have 3 of the Atlantic Technology 12's and it's pretty underwhelming.. I checked the matching tool on the SVS site and it recommend the PB-3000, so I was looking for similar performance to a pair of those.

 

[LastButNotLeast]

Right, in 18.5".

You can certainly build your own to fit, but, if you want pre-built or flat-packs, you're going to have to compromise.
Also, it looks like you're going to put the subs "here," which might not be the best place for them under any circumstances.
Do you have some kind of DSP or eq now? Have you measured what you have (REW)?
Michael

 

[Brett Hays]

Right, in 18.5".
Michael

I recognize that I have a lot of limitations, the built in unit does present challenges, but I have to work within those parameters.. so I just want to make it sound as good as possible given those limitations.

I can build my own cabinets if needed, it would be nice to have a set of plans to work from, though. Is there someplace to get custom plans made to fit the space you have to work with and the drivers you want to use? I have an Onkyo TX-RZ830 and I have run the built in Audyssey room eq, of course.

I have room depth wise to make up for the width to get 3.0cu ft. For that matter, I can modify the built in unit I suppose.. just exploring my options, really





Sent from my iPad using Tapatalk Pro

 

[LastButNotLeast]

Cubic feet is cubic feet (are?). The sub doesn't care about the shape of the box. And a sealed box is a sealed box. If you don't have to worry about how it looks, it couldn't be easier.
The go-to app is WinISD:
http://www.linearteam.org/
Lots of folks here with lots of experience with it (I'm not one of them).
You can probably get a 15" driver in 18.5" width. Plug in the stats for this
https://www.parts-express.com/dayton-audio-um15-22-15-ultimax-dvc-subwoofer-2-ohms-per-coil--295-514
into WinISD and see what playing around with the box size accomplishes.
[I just checked and the stats are already there for you to load in as the driver for a new project]
Unless you're sitting in a null (which, of course, is a possibility), it should blow you away.
Michael

 

[darthray]

Hi Brett @Brett Hays

For a kit, you were already given some good option. But might be worth for you to also look into this thread;
https://www.avsforum.com/forum/155-diy-speakers-subs/

And many other kits can be found, within this thread.
That said, since you mention you are good with tools.
If you have access to a wood working place, with the tools you do not own and pay for use.

You have no limitation, since all subs are design for a certain Woofer driver and cabinet size for internal volume.
So the cabinet size could be adjusted size wise, for your need as long it does not interfere with a port design.

And must point out, what I told you is from DIY days. Over 20 Years ago, and therefore any technical questions should be ask in the link I have provided


Ray