David Judah
Screenwriter
- Joined
- Feb 11, 1999
- Messages
- 1,479
Back when I first decided to try my hand at building a DIY sonotube enclosure, about 5 years ago, I built a tube with a ported top cap(6" dia. 19.25" long port). I realized after double checking my math that I made it way too big for the Shiva that I was planning to put into it(it would have been about 222 L), so I put it away thinking I could maybe use it with another driver down the road(I ended up building a whole new sonotube more to my liking because at the time I didn't have a way to cut it down accurately).
Now, I have a friend who wants to build his own sub but doesn't have the time or ability(so he thinks)to make one from scratch. I was thinking about giving him my old enclosure and with a Tempest all he would have to do is make a bottom cap for the driver, legs and the input cup.
With the existing port and volume, I get around a 20 Hz tune. Do you guys think the enclosure is too misaligned for a Tempest for him to bother with it as is(I could help him put a longer port in if necessary)? From modeling, GD comes in pretty high down low, but it probably won't be as noticeable for movies. I thought I would get some opinions from the braintrust here because all of the sonotubes and boxes I have built have been for specific alignments.
What do you guys think?
Thanks,
DJ
Now, I have a friend who wants to build his own sub but doesn't have the time or ability(so he thinks)to make one from scratch. I was thinking about giving him my old enclosure and with a Tempest all he would have to do is make a bottom cap for the driver, legs and the input cup.
With the existing port and volume, I get around a 20 Hz tune. Do you guys think the enclosure is too misaligned for a Tempest for him to bother with it as is(I could help him put a longer port in if necessary)? From modeling, GD comes in pretty high down low, but it probably won't be as noticeable for movies. I thought I would get some opinions from the braintrust here because all of the sonotubes and boxes I have built have been for specific alignments.
What do you guys think?
Thanks,
DJ