Wayne Parham Messages: 18680 Registered: January 2001
Illuminati (33rd Degree)
You know, Bill, I don't think that will hurt you too much. At least the reduction down from 13" to 12" depth. The 16" to 18" width change might be better dialed back though, maybe just go to 17" instead.
You know how paranoid I get when people start changing stuff, thinking we might accidentally run into a standing wave node or something. That's because a few years back, I noticed a couple guys (one right after the other) make seemingly innocent mods that caused fairly significant problems in the response curve. That's when I started telling people to "watch it" with the mods, or at least got a little more vocal about it. But the change of an inch in the width and the depth on that model probably can't get you into any trouble.
Wayne Parham Messages: 18680 Registered: January 2001
Illuminati (33rd Degree)
With respect to internal standing waves, I don't care whether the speaker is turned sideways with the narrow dimension being used as the face. The standing waves will line up the same. The port is going to be on the narrow side though, and I would probably be a little more concerned about that, since it is now in a different position with relation to the boundaries, making it a little more germane.
The height dimension is the most critical, with the woofer and port position along that axis being most important. But yeah, the little stuff can add up on you, so the further you get from the stock design, the more important it is to verify with measurements or at least simulate it with a really good mathematical model.
Bill Epstein Messages: 1088 Registered: May 2009 Location: Smoky Mts. USA
Illuminati (2nd Degree)
Great minds!
I have a design on paper right now with 2" of hardwood framing the MDF portion of the baffle. That makes the 12" veneer work and allows easy round-over of the corners.
Only problem is I'm less than enthused about framing this veneer, even with solid gold. It's that breath-taking!
This framed design worked out pretty well, though; anyone remember this:
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