super simple front firing cannon subwoofer build.
24" wide x 30" tall x 36" deep.
no consideration was made with respect to being cut sheet friendly. :-) if the panels are 1/2" smaller here or there it doesn't matter.
slot loaded cab. 2.5" tall slot x 21" wide x effective 36" long. with 20% winisd adjustment for slot port that gives a total effective length of around 44" and tuning frequency of around 16hz maybe a hair lower with the port proximity to the rear wall of the enclosure.
cabinet is about 11.2 cubic feet net or so depending on extent of bracing.
all in all, this is essentially a marty sub, but with a different form factor. a little more raw.
front mounted driver. no recess. double baffle.
driver cutout will be whatever the spec is for the driver used.
16.7" diameter for the stereo integrity 18: http://stereointegrity.com/index.php?id=60
16.69" diameter for the dayton rss460ho: http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-472
driver excursion goes to xmax with 1100 watts. good.
port velocity is low even at 1100 watts. good.
8 cabinets with 1100 watts or so of power per cabinet would have +18db relative to this response, roughly, which would be upward of 134db at 17hz before room gain.
well braced of course, but the specific plan doesn't really matter.
frequency response, 2 pi space, no room gain, 1100 watts, 1 unit
stack of four (early mockup, only one slot brace in this one):
rough cut sheet for the main panels on two 4 x 8 sheets of ply wood:
- turns out that it was pretty efficient design
- specific dimensions will depend on how the panels are buttedEdited by LTD02 - 10/14/13 at 6:17pm