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an alliterative to hdf high density fiber board
an alliterative to hdf high density fiber board
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Old 5th October 2013, 04:56 PM   #11
prairieboy is offline prairieboy  Canada
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Join Date: Nov 2010
Originally Posted by sreten View Post
Hi, I'm pretty certain you don't, rgds, sreten.
He can dream, can't he?
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Old 10th October 2013, 12:39 AM   #12
Citation is offline Citation  United States
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Join Date: Oct 2013
Try 3/4" marine plywood. If that's not stiff enough, coat it with epoxy, or even better laminate several thinner sheets together with epoxy.

For added strength, use interior bracing. Wood will work, but steel billet will work better. For example, cut three lengths of steel billet, one for each axis. Once they're checked for fit and location, mark the location inside the box and drill bolt holes. Tap the ends of each billet for bolts, then reinstall and bolt them in. Use Loctite to keep the bolts from coming loose. As a final step, weld the billets together where they meet in the middle. When it cools, coat liberally with a dense, sound-deadening material and maybe some batting.
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Old 12th October 2013, 04:04 AM   #13
ChrisA is offline ChrisA  United States
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Join Date: Jan 2008
If weight is not an issue. Build forms and pour some concrete. but if you care about weight then the BEST material is birth plywood. The key is using the best joints. The simplest good joints use a 3/4" square hardwood batten in the corners with glue and screws connecting it to the plywood. The best glue is epoxy or "gorilla glue" but the latter makes a mess.

I did an experiment once. I made up a bunch of different wood joints and then smashed them up with a sledge hammer. Maybe not a 100% scientific test but it was instructive. Finger joints turned out to be best and did not fail on the actual joint bit just adjacent to it along the besses of the fingers. Then I added a 3/4" batten glued in and also held with many 1-1/4 counter sunk screws. These were hard to destroy with the hammer.

Your results may be different but I suggest testing some of the construction techniques you can use.
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Old 19th October 2013, 04:17 PM   #14
mr. doom is offline mr. doom  United States
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Join Date: Mar 2006
Location: Montana Missoula
Outdoors/Rap/EDM=Large horns, many of them.
Reflex is great for compact, low output, lightweight boxes that still have decent extension but to have any impact you will need the SPL/WATT advantage of horns. Use the right tool for the job.
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