SUPERB! I'm using plastic sports cones and still working on making them airtight.
Shame to have to slap dampening on them and then hide inside the main enclosures.
Cam
Shame to have to slap dampening on them and then hide inside the main enclosures.
Cam
Sadik what thickness is your foam?
how long/ tall are they?
is the dagger supposed to have a small opening at the narrow end?
how long/ tall are they?
is the dagger supposed to have a small opening at the narrow end?
Nice work, Sadik. It would have been better to go with odd number of walls to reduce symmetric bell mode - but that’s ok as round cone seems to work too. Dagger should be sealed at end to prevent woofer from pressurizing it. Although if you tapered it and vented to outside via penetration on back wall, that would work too. I found no advantage to this though when Dagger was outside. I tried vented actually.
Everything will be as per the design, thanks to Mr. XRK for sharing the same. The dagger will be closed at the conical end. the total length of dagger is 300 mm.
Then it should help with flattening the impedence but again the driver is operated well away from impedence peak.
sorry from the pinkish color (at least on my old monitor) i thought the material was an xps foam!
oh, oh, my ocd is kicking in looking at that "last photo" (where's my scotch...) i would have put the unfaced damping on the back of the enclosure.
Nice work Wxn! Don’t forget to add a good ball of fiberglass inside the cabinet. Put some around the crevices around Dagger too. You can of course, add that through driver cutout. I would add a piece of that padding on back wall where terminal cup is. That will ensure that back wave is absorbed substantially. And if you have more, add another on at least 1 sidewall. 3 walls will ensure no resonant modes are supported.
Thanks for the input, yes that's the plan. I will add some more layers of absorbing stuff through the hole and then a healthy amount of loose stuffing. I also have a large sheet of 1cm thick felt, not sure if I need to add any of that. We'll see
XPS Dagger
I too thought it was foam, and cut so beautifully! Really seems like an ideal material for this application - easy to cut and glue, and should be easier to seal properly to the baffle compared to the sports cones currently in use. I think pentagonal pyramids will fit better in the tight spaces in my short cabinets.
Will use some black 3/16" Elmer's board for this attempt. The Black Daggers. And soon they will enclose a pair of 10f/8414g on order from Madisound.
Cam
I too thought it was foam, and cut so beautifully! Really seems like an ideal material for this application - easy to cut and glue, and should be easier to seal properly to the baffle compared to the sports cones currently in use. I think pentagonal pyramids will fit better in the tight spaces in my short cabinets.
Will use some black 3/16" Elmer's board for this attempt. The Black Daggers. And soon they will enclose a pair of 10f/8414g on order from Madisound.
Cam