NB50

That drops you out of the ported pair of 15's internal volume range.

http://www.sundownaudio.com/dealers.html

lol beat me to it

Anybody ever think of looking at RFs site 30 seconds and I found out the answer. http://www.rockfordfosgate.com/scripts/rig...ated=1116542735 300A ANL

How are those blocks insulated???

Is there any different coil options yet like single 2ohm, dual 1, or dual 4. Or is dual 2 going to be it? Thank you.

Almost forgot, you should add some bracing to the box also.

That wasnt even done all the way kinda halfassed IMO.

That's what I was thinking too. Thanks for all your help man, I appreciate it! No Problem. It looks like you should be able to stagger them. Those circles in the pic are 16" in diameter cause I couldnt find the outer diameter spec on the website so I just went with 16 to be safe.

You might be able to stagger them. Id have to check the subs dimensions and maybe break out the sketchup.

If I am seeing things correctly now and Im not to tired you may have problems on placement of the subs. Heres what I got. The only real place to mount them is on the top of the box subs up port back situation if they fit there.

never mind I miss read your dimensions I read 23 instead of 30. What were you trying to tune it to?

You dont really have enough room to do 15"s ported. They only need 6 cubes between them, and I plugged all that in and it was 7.1 cubes after displacement. sounds like you didnt account for wood thickness. Max internal volume is 6.22 ft^3 and that doesnt include port or driver displacement.

You dont really have enough room to do 15"s ported.

No you didn't. It is going to clear the fields every time the page is loaded.

There is no dimensions there. You could use this one and it will make a cut sheet. http://www.soundsolutionsaudio.com/home/in...calculatorflash

http://www.soundsolutionsaudio.com/forum/i...?showtopic=7153

There is a little bit of of every walk of life here were just pretty much all addicts.

no. not even close. that is close to the realm where sound turns into shock waves and start destroyin chit. world record is 1/4 that volume, 180.5dB FYI 1/4 0f 200 is not 180 its 50. in terms of loudness, every 10dB you go up, its double the volume loudness is not SPL

no. not even close. that is close to the realm where sound turns into shock waves and start destroyin chit. world record is 1/4 that volume, 180.5dB FYI 1/4 0f 200 is not 180 its 50.

The way I see it is you either get the one that says its for the 9887 or contact Alpine and get one from them.

This is all I could find. http://web.archive.org/web/20070205181523/...ofer_matrix.pdf hope it helps a little.

ill try. thanks for reply NP, I know there is a couple people on here that have D1 havocs I just don't recall who they are.

Talk to nick I believe you can get D1 coils.

Let's put it this way - if the power handling sticks out to you, you should look at other subs "Free air" would imply the front and back waves mingling, as you said in an IB setup they don't They work great for music, too, not just movies. Probably my favorite kind of subbass setup, given the space... Yes free air was the wrong term to use I just couldn't think of a term to express how big the enclosure would be.