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Flat Panel Vol. 1
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Flat Panel Vol. 1
Choir loft monitor project and associated experimentation.
Exciter hastily scotch taped to random piece of cardboard.
Needed some suspension. Saw bubble wrap in a nearby box.
Panel fit here perfectly with bubblewrap suspension. Just dumb luck.
Various pieces of metal lying around to try to make a "whizzer plate" for high enhancement.
This one sounded the best. Actually worked to enhance the highs when I held it against the panel. Will try gluing it on once I get more finished panels so I can A-B test it.
This is my testing amp, running from my Mac through my mixing board. Sound really improved when I dialed in the sub. Small panel=poor lows. Not really a problem in the application I am building these for though...
Testing the "whizzer plate". Playing "The Wall" from Kansas (A piece I really enjoy and am very familiar with). At the end, the last note is very high and held for a long duration. I was able to place and remove the "whizzer plate" a couple of times... as soon as it touched the panel, the note got bolder and overtones appeared. I MAY be onto something. Once I glue one on, I'll have a better test, because I'll be able to check the directivity. If you can only hear it in the sweet spot, then it's a fail. Working on other panels (nicely cut and shellacked) as we speak.
Here is the "whizzer plate" in comparison to the panel.
The panel on the left is actually a precut cake board, straight out of the box, gloss finish on one side, corners already cut in a radius. The one on the right has the inside shellacked. Note the shellac and tools above.
Here is an edge view. This is known as a 1/2 sheet cake size and is about 19"X14". Full sheet cake sizes (twice as large) are also available.
Putting shellac into the corrugations. This gizmo is designed to refill ink cartridges.
Use a tray to catch and reclaim shellac, and to avoid a mess. I can't remember who suggested this in the thread... but it is a great idea.
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