11-03-2011, 06:13 AM
picking up from a previous thread....
A spring release to close the door? A recommendation of no opening cut in panel for sound to travel through, a solution that doesn't require cutting?
I can see that I've unintentionally misled, with my ambiguous text descriptions. My own fault for using words where a picture would illustrate much better.
I took the advice offered, and am including snapshots to illustrate the audio/video center.
Note: In the photo depicting the door panel open, we see an acoustic guitar, and a floor standing speaker. This is the speaker I want to make an opening in the panel for. There is also a bookshelf speaker above it, on the shelf. I got an additional baffle, a single one, for that speaker, optionally. But since its position isn't permanent, this is not decided yet, so not our concern for now. It's the floor-standing speaker I'm currently focused on.
Also note, there's an in-wall speaker above the plasma TV, the center channel. That's the type of baffle, though, not the shape. I considered getting a rectangular baffle, and cutting a rectangular hole, to be consistent, but as it turns out, rectangular baffles like that one aren't as easy to find, they're in a set that includes an in-wall speaker. (as seen already installed above TV) Round baffles, however, are more available, affordable, and common. And I prefer not to make a custom baffle with fabric. I really am happy with car-speaker-like, white round metal speaker baffles.
Allowing a way for sound to go directly through that sliding wooden panel, relatively unobstructed, via an opening, regardless of whether panel is open or closed, is actually a pretty normal and sensible solution. Contrary suggestions, or different types of projects, aren't unwelcome. I can entertain alternate ideas. Or, I can dismiss those suggestions, and restate my original question, about methods to cut the hole for the baffles already chosen.
To address the woofer question, and omnidirectional. I think this is more of a theoretical thing, I get it. But there's a reason I want a baffle for the lower cone, for the sound waves to escape through. I don't agree that area should remain blocked, since it's low-frequency, omnidirectional, and doesn't matter. If we remove the baffle covering a large two-way speaker, it reveals a pair of round speaker cones, a woofer, and a tweeter, housed in a rectangular box. Facing outward. True? Yes, true. If so, a pair of round holes, with a secondary set of baffles, though imperfect, essentially mimics how a stereo speaker is built.
I can accept that design, even though I, too, understand that lower-frequency sound waves behave differently than higher-frequency ones. An opening for forward-facing woofer cone, as well as an opening for the forward-facing tweeter cone, still makes sense here.
Since stereo speakers are designed that way, working with that design as a starting point is useful for a project like this. An minimally-invasive opening in the door panel is a good idea. Ideally an opening that allows for the sound to project forward, toward the listener, through relatively unobstructed, minimally-altered space. Plus, it's a fun project.
Anyone near Seattle with a box full of tools and an afternoon to kill?
Trouble wrote:
If the speaker is a two-way, and it sounds like it is, that woofer is projecting midrange tones as well and those are directional. IIRC, only very low freqs below 200 Hz are nondirectional. Personally I wouldn't cut anything. Add a spring release to close the door automatically or some other solution that doesn't require cutting.
A pic would help.
A spring release to close the door? A recommendation of no opening cut in panel for sound to travel through, a solution that doesn't require cutting?
I can see that I've unintentionally misled, with my ambiguous text descriptions. My own fault for using words where a picture would illustrate much better.
I took the advice offered, and am including snapshots to illustrate the audio/video center.
Note: In the photo depicting the door panel open, we see an acoustic guitar, and a floor standing speaker. This is the speaker I want to make an opening in the panel for. There is also a bookshelf speaker above it, on the shelf. I got an additional baffle, a single one, for that speaker, optionally. But since its position isn't permanent, this is not decided yet, so not our concern for now. It's the floor-standing speaker I'm currently focused on.
Also note, there's an in-wall speaker above the plasma TV, the center channel. That's the type of baffle, though, not the shape. I considered getting a rectangular baffle, and cutting a rectangular hole, to be consistent, but as it turns out, rectangular baffles like that one aren't as easy to find, they're in a set that includes an in-wall speaker. (as seen already installed above TV) Round baffles, however, are more available, affordable, and common. And I prefer not to make a custom baffle with fabric. I really am happy with car-speaker-like, white round metal speaker baffles.
Allowing a way for sound to go directly through that sliding wooden panel, relatively unobstructed, via an opening, regardless of whether panel is open or closed, is actually a pretty normal and sensible solution. Contrary suggestions, or different types of projects, aren't unwelcome. I can entertain alternate ideas. Or, I can dismiss those suggestions, and restate my original question, about methods to cut the hole for the baffles already chosen.
To address the woofer question, and omnidirectional. I think this is more of a theoretical thing, I get it. But there's a reason I want a baffle for the lower cone, for the sound waves to escape through. I don't agree that area should remain blocked, since it's low-frequency, omnidirectional, and doesn't matter. If we remove the baffle covering a large two-way speaker, it reveals a pair of round speaker cones, a woofer, and a tweeter, housed in a rectangular box. Facing outward. True? Yes, true. If so, a pair of round holes, with a secondary set of baffles, though imperfect, essentially mimics how a stereo speaker is built.
I can accept that design, even though I, too, understand that lower-frequency sound waves behave differently than higher-frequency ones. An opening for forward-facing woofer cone, as well as an opening for the forward-facing tweeter cone, still makes sense here.
Since stereo speakers are designed that way, working with that design as a starting point is useful for a project like this. An minimally-invasive opening in the door panel is a good idea. Ideally an opening that allows for the sound to project forward, toward the listener, through relatively unobstructed, minimally-altered space. Plus, it's a fun project.
Anyone near Seattle with a box full of tools and an afternoon to kill?
