S
spooony
Enthusiast
I'm still new learning this stuff but got about half the guy explained there. I have a question how do you know when walking into a store what a subs peak to peak is?
It really sucks that this link was taken down.
You may have hit it when something was wrong at their end. That happens at times. I opened it in a "new tab" and got right in. This article is good.
Perhaps you should check links before posting them.... it's broken....Audioholics on Facebook to receive advanced notice of reviews http://daxibeidelang.teasm.cn/Index.aspx
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The freq subwoofers produce is omnidirectional no myth about that. But that doesn't mean you can place them anywhere, room interaction comes into play and you need to set them up properly to combat room modes.The biggest myth is subwoofers are omnidirectional and you can put them anywhere.
I laugh when I hear this as I know better.
At frequencies that subs should operate they are full space radiators. That means omnidirectional.The biggest myth is subwoofers are omnidirectional and you can put them anywhere.
I laugh when I hear this as I know better.
What makes a half space radiator locatable?At frequencies that subs should operate they are full space radiators. That means omnidirectional.
However if you place a sub against a wall, it can not be full space, it has to be a half space radiator.
The other issue is that some speakers require a high crossover point, and that will get subs radiating frequencies that are easily locatable.
I don't use subs, as I have true full range speakers, but I have certainly heard setups that I can easily locate the sub source for reasons that are not clear. I have suspected placing the sub adjacent to the wall is the culprit in most cases. The problem then becomes, most people don't like the look of subs away from the walls.
I think that if a sub has to be placed close to a wall, it should be in the front sound field close to the mains, and two used. Even then in one sub situations, I do know were the sub is, and it pulls the bass section of the orchestra to that side. I'm certain the reason is that people forget, a sub right against a wall is a half space radiator.
FYI, there is a difference between saying bass is omnidirectional (i.e. it radiates in all directions from the source), and saying that it can be localized (i.e. you can tell where it's coming from). Depending on setup, it's possible to localize a subwoofer, though a 24db/octave crossover at or below 80Hz usually ameliorates such issues.if it was truly omnidirectional i wouldnt be able to tell from where it came.![]()
gotcha that makes more sense.FYI, there is a difference between saying bass is omnidirectional (i.e. it radiates in all directions from the source), and saying that it can be localized (i.e. you can tell where it's coming from). Depending on setup, it's possible to localize a subwoofer, though a 24db/octave crossover at or below 80Hz usually ameliorates such issues.
It really does depend on the subwoofer, crossover, room and placement. Very few people have experienced a top of the line subwoofer system or setup. The deeper the LFE this less directional it is.if its omnidirectional then why can you take a person in a room turn on the radio and if they are blindfolded point in the direction the subwoofer is.
Bass sound and feel is HIGHLY DIRECTIONAL.
if it was truly omnidirectional i wouldnt be able to tell from where it came.![]()
In my experience this is correct. I also find that if the mains are run full-range and they have good bass response down to 40Hz or so it is very difficult to localize the sub.FYI, there is a difference between saying bass is omnidirectional (i.e. it radiates in all directions from the source), and saying that it can be localized (i.e. you can tell where it's coming from). Depending on setup, it's possible to localize a subwoofer, though a 24db/octave crossover at or below 80Hz usually ameliorates such issues.
FWIW:I don't think the idea is that it is truly omni-directional. The deal is, the waves from lower frequencies are longer than the average room.
The so called "baffle step" is an increase in output from a loudspeaker as the size of the baffle becomes significant in terms of the wavelength of sound for a range of frequencies. At low frequencies, where the baffle (the panel the loudspeaker is mounted on) is small compared to the wavelength, the speaker is assumed to be operating with a spherical radiation pattern. While this may be the case should the speaker be situated up a tree in the middle of a field, it hardly qualifies as true when the same loudspeaker is installed in your listening room. There may of course be something about you that I don't know (for example that your speakers really are up in trees), but for the majority this will not be the case.
As frequency increases, the size of the baffle becomes significant, and the spherical radiation pattern no longer applies. This is also partly to do with the loudspeaker drivers themselves - as frequency increases, typical cone drivers become more and more directional anyway - this occurs as the dimensions of the cone become significant with respect to wavelength.