Designed like a picture with frame, only 85 mm deep. Visually appears much shallower, because of heavily slanted sides toward the thin wooden frame, black covering helps also.
Midbass: TVM Acoustics ARN-150-05/8
Tweeter: TVM Acoustics ARV-078-00/8
I don't know if the drivers are still available around, it is a 13 year old project from the DIY/popular science magazine EMITER, issue December 2007, you can order it (hard copy) for 2.10 EUR plus postage (use Google translate):
Проект: Hi-Fi звучник Picasso | Емитер
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It doesn't hurt to hang on to the edge and let the wavefront develop.
In the first image here, the diffraction can be seen off the sharp edge. It forms a circle completely around the baffle edge (sorry that the contrast doesn't make for an easy view).
In the second plot, the diffraction forms a spiral, not a circle, and the centre of expansion follows around the roundover. The front portion of the diffracted energy is diminished. The inner edge of the wavefront adapts and stays with the roundover.
Attachments
DIY wall mount
I'm glad you said it first......
If it has a grill to cover the top, then it could look like half an egg.
I'm glad you said it first......
If it has a grill to cover the top, then it could look like half an egg.
Googling for iages to add to those Allen & Matt posted.
Most show what is going in the wrong direction, but one can get some ideas:
This one is just pretty but shows the spiral:
dave
Most show what is going in the wrong direction, but one can get some ideas:
This one is just pretty but shows the spiral:
An externally hosted image should be here but it was not working when we last tested it.
dave
I don’t see why not, one would need to ensure the driver was at the right height. A mother to wall mount thou (4-6 3-3.5” lag bolts into the studs.
Could also be built into a thick enuff wall.
dave
This is the ripple tank simulation if anyone fancies playing with it. Ripple Tank Simulation After a while you get a feeling for how waves behave and it becomes quite intuitive. Air flow has similarities but differences too.
A run of DIVAs, designed by a friend & colleague, were made by the local hifi store. 2-way with Audax 6 and 1” dome.
Can’t find a picture
dave
On the primary wavefront edge, yes but the diffraction wavefront has become overexposed.
I like what you're trying with rolling the edge back out to the wall, I've been there too. I had a conversation with Earl that had me thinking. There are quite a handful of factors to consider. I accept that no matter how you slice it this is a compromise situation but it doesn't have to be negative. The upshot was to keep rolling back, and the question is what radius to use in a given situation.
Kaiutinrakennusohje Teini-seinakaiutin ja Teinijytky-aktiivisubwoofer - AudioVideo
I made some diffent box with same drivers
I made some diffent box with same drivers