Shiva-X build.....

**favelle** · **11-04-09, 03:39 AM**

Quote:

Mike P. wrote:

That would be close. The displacement has already been taken into account in the sonosub pic I posted.

Excellent. And would we be smart to get some foam padding or dampening material for the sides and around the port? Or is that a waste of time?

**favelle** · **11-04-09, 05:31 AM**

Gone past the point of theoretical....now we have the build thread:

http://www.hometheatershack.com/foru...ld-thread.html

**Kevin Haskins** · **11-04-09, 10:45 AM**

Quote:

favelle wrote:

Gone past the point of theoretical....now we have the build thread:

http://www.hometheatershack.com/foru...ld-thread.html

Looks good.... you can use a little fill or egg-crate. I typically just use polyfill, 10-15% in these types of builds. (16oz. per cubic foot = 100% fill) A lot of people like to use the egg-crate foam because they can glue it to all the enclosure surfaces. Nothing wrong with either approach.

Kevin Haskins
Exodus Audio

**favelle** · **11-04-09, 01:10 PM**

Quote:

Kevin Haskins wrote:

Looks good.... you can use a little fill or egg-crate. I typically just use polyfill, 10-15% in these types of builds. (16oz. per cubic foot = 100% fill) A lot of people like to use the egg-crate foam because they can glue it to all the enclosure surfaces. Nothing wrong with either approach.

Kevin Haskins
Exodus Audio

Great stuff. Can I cut up an egg-crate foamy from WalMart and have it be suitable?

**Mike P.** · **11-04-09, 01:31 PM**

Yes, a lot of people use that.

**favelle** · **11-05-09, 12:08 AM**

Quote:

Mike P. wrote:

200 liters tuned to 18 hz looks good. The amp has a 3rd order HPF at 18 hz.

Attachment 16893

Hey Mike, do you think I should change the HPF on this HPSA 500W? Its stock at 18hz.....am I going to lose any lower end stuff by having that filter on there?

**Mike P.** · **11-05-09, 12:39 AM**

It's fine where it is for a 12 inch sub. You'll be impressed.

**favelle** · **11-05-09, 12:48 AM**

Quote:

Mike P. wrote:

It's fine where it is for a 12 inch sub. You'll be impressed.

Cool, thanks. As long as I'm not missing anything I could "potentially" have, then I am usually happy with the limitations of the build.

Thanks Mike!

**favelle** · **11-19-09, 08:50 PM**

Quote:

Mike P. wrote:

200 liters tuned to 18 hz looks good. The amp has a 3rd order HPF at 18 hz.

Attachment 16893

Hey Mike, was this with the "bass boost" applied on the amp or shut off? I've been fooling around with the PEq a bit and it seems to have a hufe effect.

**Mike P.** · **11-20-09, 01:29 AM**

I modeled it without the boost.

**favelle** · **11-20-09, 02:00 AM**

Quote:

Mike P. wrote:

I modeled it without the boost.

Great, thanks man. Should get some SPL numbers this weekend....

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