Does this Baffle Sound Bad???

ralph-bway · 30th January 2004, 08:01 PM

Tatoturbo posted the following pic in the Permanent Thread for Systems & Descriptions. I like the shape of it and wondered if that kind of flare around the speaker was a good or bad thing for sound.

Bill Fitzpatrick · 30th January 2004, 08:22 PM

If this isn't a sub I would have issues with how far the driver sits back from the rim of the flare.

ralph-bway · 30th January 2004, 08:31 PM

Hi Bill,

I looked at the pic again & it seems like the speaker sits a little back from being flush at the lip of the flare. If it was made to be flush with the lip that would be better right?

Also would this kind of flare be a bad thing for diffraction (woofers and tweeters)?

What's the difference if it's a sub or not?

Thanks
Ralph

ultrachrome · 30th January 2004, 08:43 PM

Subs would tend to have thicker rims necessitating a deeper rabbet.

Looking at the picture of his woofer, it seems it will be recessed. Not sure how he did it. Did he use that ring as a spacer and the woofer rests inside it? It wouldn't be difficult to make the woofer reasonably flush with this design. Maybe he's flushmoutning a grill.

However, I wonder what having that hollow chamber between the fiberglass and wood would do. It would be great if you could fill it with sand which would be doable if you glued the rear panel on last.

SY · 30th January 2004, 09:16 PM

Quote:

Subs would tend to have thicker rims necessitating a deeper rabbet.

Well, there's also the wavelengths to be considered. At bass frequencies, that little bitty edge isn't going to diffract much.

30th January 2004, 08:31 PM	#3
ralph-bway diyAudio Member Join Date: Sep 2002 Location: Long Island, NY	Hi Bill, I looked at the pic again & it seems like the speaker sits a little back from being flush at the lip of the flare. If it was made to be flush with the lip that would be better right? Also would this kind of flare be a bad thing for diffraction (woofers and tweeters)? What's the difference if it's a sub or not? Thanks Ralph __________________ Probably a silly question, but ........

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30th January 2004, 08:22 PM	#2
Bill Fitzpatrick diyAudio Member Join Date: Jun 2001 Location: Eugene, OR	If this isn't a sub I would have issues with how far the driver sits back from the rim of the flare.

30th January 2004, 08:43 PM	#4
ultrachrome diyAudio Member Join Date: Jan 2002 Location: Puget Sound	Subs would tend to have thicker rims necessitating a deeper rabbet. Looking at the picture of his woofer, it seems it will be recessed. Not sure how he did it. Did he use that ring as a spacer and the woofer rests inside it? It wouldn't be difficult to make the woofer reasonably flush with this design. Maybe he's flushmoutning a grill. However, I wonder what having that hollow chamber between the fiberglass and wood would do. It would be great if you could fill it with sand which would be doable if you glued the rear panel on last.

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