DiSub 12/2

kubi · 5th July 2008, 11:33 PM

I finally finished my second DiSub 12/2 and decided to write some lines down and add some pictures. Nothing special, hope you like it, anyway, and find it inspiring:
http://audio.kubarth.com/disub/

It's a really great sub that I can highly recommend.

Thanks for reading.

All the best,
Darius Kubarth

Corax · 10th July 2008, 02:57 PM

Nice job Darius - however I'm almost sure you don't have much experience in working with real wood in particular with those gluelams you're using.
The point is that you will experience - sooner or later - the wood building up fissures when it dries.

Sometimes you'll even hear crackling noises from the wood when you open the window in the room and the humidity level and temperature will change (more or less) rapidly.
This is based on the circumstance that wood is never dead - it always 'breathes' and will change size based on the aforementioned facts.
Depending on the grain orientation the increase/decrease in size is different and varies from promille to a couple of percent.
Since you have glued the wood together without taking care about the grain orientation you have a good chance that it might bust the glue joints because of mechanical stress and it will at least build up fissures making the 'chamber sealing' (if you can talk about such things with open baffles

) non-perfect.
If you've glued all the braces with a grain orientation eighter vertical or horizontal you woud've done a better (wood) job though.

Nervertheless the overall job performance is quite good - from my point of view (and according to the taken pictures of yours)

kubi · 20th July 2008, 10:08 AM

Corax, thank you for your comments. Yes, indeed I'm no wood specialist. I'm more into electronics that's why this project was more fun for me: http://audio.kubarth.com/pico_rucksack/

So far I have no problems with the wood's expansiveness. Nevertheless, I will add your comments, what to watch out for, to the website in case anybody is going to build that sub with wood.

Before that project I used MDF for other loudspeaker projects and so I never payed attention to the materials orientation.

5th July 2008, 11:33 PM	#1
kubi diyAudio Member Join Date: Aug 2004 Location: Germany	DiSub 12/2 I finally finished my second DiSub 12/2 and decided to write some lines down and add some pictures. Nothing special, hope you like it, anyway, and find it inspiring: http://audio.kubarth.com/disub/ It's a really great sub that I can highly recommend. Thanks for reading. All the best, Darius Kubarth

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

10th July 2008, 02:57 PM	#2
Corax diyAudio Member Join Date: Feb 2005 Location: south of lower saxon	Nice job Darius - however I'm almost sure you don't have much experience in working with real wood in particular with those gluelams you're using. The point is that you will experience - sooner or later - the wood building up fissures when it dries. Sometimes you'll even hear crackling noises from the wood when you open the window in the room and the humidity level and temperature will change (more or less) rapidly. This is based on the circumstance that wood is never dead - it always 'breathes' and will change size based on the aforementioned facts. Depending on the grain orientation the increase/decrease in size is different and varies from promille to a couple of percent. Since you have glued the wood together without taking care about the grain orientation you have a good chance that it might bust the glue joints because of mechanical stress and it will at least build up fissures making the 'chamber sealing' (if you can talk about such things with open baffles ) non-perfect. If you've glued all the braces with a grain orientation eighter vertical or horizontal you woud've done a better (wood) job though. Nervertheless the overall job performance is quite good - from my point of view (and according to the taken pictures of yours)

20th July 2008, 10:08 AM	#3
kubi diyAudio Member Join Date: Aug 2004 Location: Germany	Corax, thank you for your comments. Yes, indeed I'm no wood specialist. I'm more into electronics that's why this project was more fun for me: http://audio.kubarth.com/pico_rucksack/ So far I have no problems with the wood's expansiveness. Nevertheless, I will add your comments, what to watch out for, to the website in case anybody is going to build that sub with wood. Before that project I used MDF for other loudspeaker projects and so I never payed attention to the materials orientation.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)