AVS Forum banner

1 - 20 of 113 Posts

·
Registered
Joined
·
1,788 Posts
Discussion Starter #1 (Edited)
EDIT: I decided to build the sonosub with the Klipsch driver. Pictures are later in the thread.

I've got a spare woofer from a Klipsch RW-12d and was wanting to make something out of it. I can't really seem to find any specs on it, but I was considering trying to build a Sonosub out of it. Would I be better off just building a traditional box for it or could this be a decent woofer for a Sono?

TIA

EDIT: Finished product.

 

·
Registered
Joined
·
1,887 Posts
If you are looking to not spend too much, I say sell the woofer on ebay and buy a Dayton 15" subwoofer.
 

·
Registered
Joined
·
592 Posts
Quote:
Originally Posted by yamahaSHO
I've got a spare woofer from a Klipsch RW-12d and was wanting to make something out of it. I can't really seem to find any specs on it, but I was considering trying to build a Sonosub out of it. Would I be better off just building a traditional box for it or could this be a decent woofer for a Sono?


TIA
I tried to get specs for a woofer from klipsch a couple months ago, they would not give out the specs. Don't waste your time, sell the woofer like I did, then spend the money on a woofer you can match to the project you want to move forward with.
 

·
Registered
Joined
·
1,788 Posts
Discussion Starter #6
I don't really *need* to build this. I have my media room and theater situated... It's just a fun project.



I can't imagine the woofer itself is all that bad to build from. It makes some decent bass in a crappy Klipsch box. I figure I could build something that'll help it sound a little better. I may throw it in as a 3rd sub for my theater.
 

·
Registered
Joined
·
3,801 Posts
I took an unknown Sony driver and built a Sono out of it. All the driver details tell you is what max excursion happens at what wattage (sort of). So within reason, you can build an enclosure and tune it and make the driver work. Just don't go crazy. I built a small sono (80 liters) and tuned it to ~21hz. The driver came from a small ported enclosure most likely tuned to 35-40hz!! The amp it came with had a HP filter set to ~35hz....


Everyone told me it was a waste of time and that the driver was not capable of more than the enclosure it originally came with. Wrongo in the Congo. The new build sounds WICKED. Especially when its not crippled with a crappy amp.


You might just surprise yourself:

http://www.hometheatershack.com/foru...ny-driver.html













 

·
Registered
Joined
·
7,447 Posts
You can make any subwoofer sound okay in the wrong box at "certain frequencies".


Up until the point where you reach its max-excursion below the tuning point.
 

·
Registered
Joined
·
1,788 Posts
Discussion Starter #9

Quote:
Originally Posted by Favelle /forum/post/19565952


I took an unknown Sony driver and built a Sono out of it. All the driver details tell you is what max excursion happens at what wattage (sort of). So within reason, you can build an enclosure and tune it and make the driver work. Just don't go crazy. I built a small sono (80 liters) and tuned it to ~21hz. The driver came from a small ported enclosure most likely tuned to 35-40hz!! The amp it came with had a HP filter set to ~35hz....


Everyone told me it was a waste of time and that the driver was not capable of more than the enclosure it originally came with. Wrongo in the Congo. The new build sounds WICKED. Especially when its not crippled with a crappy amp.


You might just surprise yourself:

http://www.hometheatershack.com/foru...ny-driver.html














You can understand what I mean, it's just for fun. Here is the woofer I am working with:



Quote:
Originally Posted by CZ Eddie /forum/post/19566110


You can make any subwoofer sound okay in the wrong box at "certain frequencies".


Up until the point where you reach its max-excursion below the tuning point.

I've built a few subs over the years. Some VERY large to small ones that always surprise people. I'm not looking for monster sub out of this, but I'm willing to bet it won't be a slouch when I'm done.
 

·
Registered
Joined
·
1,788 Posts
Discussion Starter #10
I've decided that I'm definitely going to build a sono out of it. I've been wanting to do one for fun. I'll see how it sounds in the rear of my theater, but if it doesn't match well since the other two subs will be SVS, I'll give it to my dad to use in his room



It won't be a skull crusher, but I'm sure it will be impressive.
 

·
Registered
Joined
·
4,797 Posts
I look forward to seeing your build.


I am not saying they do, but I am surprised the giys on PE dont have the specs of the Klipsch subwoofer drivers. I figured someone would have thought of doing something similar in the past and posted specs after their testings. Just wishful thinking is all.
 

·
Registered
Joined
·
1,788 Posts
Discussion Starter #12
Favelle-

I was looking at your build thread and you mentioned changing the port to a 24hz tune. Did you end up changing it? If so, how did it react? I am looking at a 24hz tune as the RW-12d was rated down to 24hz. Does this seem logical, or should I be shooting for something else?


Now that my SVS subs came in, I'm getting really antsy to build this. It might take some 'tuning', but I think I can get it to play nice with the two SVS subs well and really shake things up in my room.

Quote:
Originally Posted by chrapladm /forum/post/19579279


I look forward to seeing your build.


I am not saying they do, but I am surprised the giys on PE dont have the specs of the Klipsch subwoofer drivers. I figured someone would have thought of doing something similar in the past and posted specs after their testings. Just wishful thinking is all.

Yeah, it would be nice to have some specs. I suppose I'll follow similar to the original box specs, but not exactly. I'd like to see the woofer do more, especially if Favelle can pull some really good numbers off of a cheap old Sony woofer.
 

·
Registered
Joined
·
1,788 Posts
Discussion Starter #13
Well, I've started working this project. Circle jigs are awesome!


Final design.







The end caps will be a total of 2". 2 layers of 3/4" MDF and 1 layer of 1/2 Birch plywood. I will install everything using Hurricane Nuts for easy removal of parts if I ever need to modify.









The flush mounted port is a little low, but I expect the gasket will raise it up to look more flush.


 

·
Registered
Joined
·
4,797 Posts
Gotta love the circle jigs. I am not so good at using any circular saws but I have gotten pretty good at the router. And now I have my circle jig also and it makes my cutting look like what I wanted.


Your cuts also make everything look very professional. Nice job so far.
 

·
Registered
Joined
·
3,801 Posts
Awesome man! Don't see many endcaps without the over-sized end pieces. Looks great!
 

·
Registered
Joined
·
1,788 Posts
Discussion Starter #17

Quote:
Originally Posted by SilentJ20 /forum/post/19821697


That's a pretty driver. It almost seems a shame to hide it
. Btw, did you mention what you're powering it with? Unless I've missed it, twice...

I think I am going with the Oaudio 500w plate amp. It has a selectable filter and PEQ that I think will be useful.

Quote:
Originally Posted by Favelle /forum/post/19826025


Awesome man! Don't see many endcaps without the over-sized end pieces. Looks great!

Thanks! I actually don't like them with the [really] large encaps. Hopefully it turns out.





Got a chance to do a little more work on my sub today. I'm going to get the other baffle glued tomorrow and then go use a drill press to drill my holes and install Hurricane Nuts.






With the gasket on the port, it sits just a tad high. Screwing it down should make it flush.



Couldn't find the "egg crate" stuff, but this should work. It's a bit more dense than the old egg crate stuff I have for my blow up matress which I purchased about 8 years ago.




Couple of questions... I know a lot of people use about 6" of fiberglass on the port end, but I really hate that crap. Anyone know of an alternative that won't be so nasty and is nearly as good. I've been searching the web, but I haven't really found anything.


Also, I've seen some like to dampen the port as well. I have quite a bit of extra Dynamat from a computer build and was wondering if it would be beneficial to stick that on the OD of the port and then wrap with some more of the foam. Any thoughts?
 

·
Registered
Joined
·
1,788 Posts
Discussion Starter #18
After getting both end caps complete, I did a dry fit of everything and set the subwoofer in the baffle and fired the sub up with my PE BASH 300S and I can say that I am absolutely glad I did this. I am actually amazed at the results. Even with air leaks and a sub just sitting on the baffle, this thing already sounds CONSIDERABLY better than the RW-12d box. It is much smoother, louder, and hits lower... Without port noise or other box noises.


Now that I have done a dry fit, I will be taking the baffles to make use of a drill press and start drilling for the driver mounting and base plate.


This one is a keeper!



 

·
Registered
Joined
·
4,797 Posts
Glad it worked out. Love to hear about plans coming together and meeting atleast the expectations.


I just hate the fact yours is done and mine is just pieces. J/K
 

·
Registered
Joined
·
1,233 Posts
Nicely coming along,you seem to be good at it.
 
1 - 20 of 113 Posts
Top