New to DIY

[CidHighwind]

This is my first DIY speaker project. I have a running thread at AV123, so it's easier to post the link:
http://av123forum.com/showthread.php?t=34349

I'm learning as I go. Right now I'm figuring out what finish to use, and I'm about to order crossover components.

And this is something I came up with last night and drew in paint this morning

The yellow woofers are HiVi's, but that's only because I like the look. The real thing (if I build these) might not have HiVi's.

[badman]

The form with the circular faceplates and drivers in the center is the worst from an edge diffraction perspective. If you were to do this, you'd want to do VERY extreme edge roundovers so that the face resembled two spheres, rather than flat circles. That would be ideal from a diffraction perspective.

But, may I suggest you start with something well-documented? There's much "elbow grease" knowledge to be gleaned from this approach. Zaph audio is a good starting point.

Looking at the AV123 thread, it's different than the pic above. It seems to me you're putting the cart before the horse, coming up with something that looks cool, and trying to work backwards from there. Doing so successfully takes some serious design chops, and I strongly recommend you start with more pedestrian builds until you have a fuller understanding of speaker issues.

Vance Dickason's book is on the sale page at madisound, you should pick up a copy and get it dog-eared before trying projects this extreme.

[Iain McNeill]

Nice design. I like the vertically aligned acoustic centers and the narrow baffle. (You'll want to round the edges of the front baffle to reduce diffraction.)

Looks like you're jumping right in at the deep end - right on!

[Ron E]

You don't want your drivers that far apart. Best practice is to put them as close together as possible. Imagine if you smash the whole works together vertically it starts looking like a violin body, you could even paint a black stripe and put a neck on it.

A driver being in the absolute center of a circular baffle can be a problem, but even a slight offset from center evens things out somewhat. That becomes easier to do aesthetically once you smash the two circles together and merge them.

[dublin78]

Placing the drivers this far apart would be fine if you used a fullranger such as the Jordan JX92S at the top of the cabinet, with a sub, or helper woofer working down from 200hz say at the bottom.

In fact this would make a very nice system.

[dublin78]

As the previous posters state, you will need to round off the edges well, but here is some inspiration.

[CidHighwind]

Originally posted by Iain McNeill
Nice design. I like the vertically aligned acoustic centers and the narrow baffle. (You'll want to round the edges of the front baffle to reduce diffraction.)

Looks like you're jumping right in at the deep end - right on!

The edges will be 3/4" bamboo corner molding, so they will be round. :-)

The circles thing was just something I thought up that looked neat and took about 10 min or so to draw. It's fun to come up with different designs.