Rear Ported

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steve_1979

Well-known member
Jul 14, 2010
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matt49 said:
steve_1979 said:
Vladimir said:
steve_1979 said:
Vladimir said:
matt49 said:
Anyway, my point remains: if you generate sound inside a box and then make a hole in the box, more sound will come out, and it'll come out through the hole.

I have to agree with this.

There is more sound coming out of the back port hole than in front or the sides of the speakers simply because the hole isn't obstructed from a cone or walls.

That's what your instinct tells you and at higher frequencies you'd be correct. But the fact remains that low bass frequencies are omnidirectional and the bass coming out of the port will be just as loud in front or behind the speaker.

I know it goes against your instincts but that's what the laws of physics dictate and it's been scientifically proven many times. You can even try it yourself. Play an 80Hz sine wave through your speakers then turn them around by 180° and play the sine wave again. The bass volume won't change.

No one listens to 80Hz tones Steve. This is real life and we listen to music at home. smh...

I almost replied then relised you'd slipped back into Thompson mode. *mosking*

There will be a prize for the poster who is able to maintain a Thompson pose for the longest time without anyone noticing.

Now that sounds like a fun game but it'd would be very confusing for any newcomers to the forum who don't know what's going on. *ROFL*
 

Vladimir

New member
Dec 26, 2013
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steve_1979 said:
matt49 said:
steve_1979 said:
Vladimir said:
steve_1979 said:
Vladimir said:
matt49 said:
Anyway, my point remains: if you generate sound inside a box and then make a hole in the box, more sound will come out, and it'll come out through the hole.

I have to agree with this.

There is more sound coming out of the back port hole than in front or the sides of the speakers simply because the hole isn't obstructed from a cone or walls.

That's what your instinct tells you and at higher frequencies you'd be correct. But the fact remains that low bass frequencies are omnidirectional and the bass coming out of the port will be just as loud in front or behind the speaker.

I know it goes against your instincts but that's what the laws of physics dictate and it's been scientifically proven many times. You can even try it yourself. Play an 80Hz sine wave through your speakers then turn them around by 180° and play the sine wave again. The bass volume won't change.

No one listens to 80Hz tones Steve. This is real life and we listen to music at home. smh...

I almost replied then relised you'd slipped back into Thompson mode. *mosking*

There will be a prize for the poster who is able to maintain a Thompson pose for the longest time without anyone noticing.

Now that sounds like a fun game but it'd would be very confusing for any newcomers to the forum who don't know what's going on. *ROFL*

The current AVR thread is a bigger disaster than this one because I'm the only one faking. (or perhaps not)
 

matt49

Well-known member
Apr 7, 2013
78
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steve_1979 said:
matt49 said:
steve_1979 said:
Vladimir said:
steve_1979 said:
Vladimir said:
matt49 said:
Anyway, my point remains: if you generate sound inside a box and then make a hole in the box, more sound will come out, and it'll come out through the hole.

I have to agree with this.

There is more sound coming out of the back port hole than in front or the sides of the speakers simply because the hole isn't obstructed from a cone or walls.

That's what your instinct tells you and at higher frequencies you'd be correct. But the fact remains that low bass frequencies are omnidirectional and the bass coming out of the port will be just as loud in front or behind the speaker.

I know it goes against your instincts but that's what the laws of physics dictate and it's been scientifically proven many times. You can even try it yourself. Play an 80Hz sine wave through your speakers then turn them around by 180° and play the sine wave again. The bass volume won't change.

No one listens to 80Hz tones Steve. This is real life and we listen to music at home. smh...

I almost replied then relised you'd slipped back into Thompson mode. *mosking*

There will be a prize for the poster who is able to maintain a Thompson pose for the longest time without anyone noticing.

Now that sounds like a fun game but it'd would be very confusing for any newcomers to the forum who don't know what's going on. *ROFL*

Hopefully they'll enter into the spirit, it being Christmas and whatever.
 
matt49 said:
steve_1979 said:
matt49 said:
steve_1979 said:
Vladimir said:
steve_1979 said:
Vladimir said:
matt49 said:
Anyway, my point remains: if you generate sound inside a box and then make a hole in the box, more sound will come out, and it'll come out through the hole.

I have to agree with this.

There is more sound coming out of the back port hole than in front or the sides of the speakers simply because the hole isn't obstructed from a cone or walls.

That's what your instinct tells you and at higher frequencies you'd be correct. But the fact remains that low bass frequencies are omnidirectional and the bass coming out of the port will be just as loud in front or behind the speaker.

I know it goes against your instincts but that's what the laws of physics dictate and it's been scientifically proven many times. You can even try it yourself. Play an 80Hz sine wave through your speakers then turn them around by 180° and play the sine wave again. The bass volume won't change.

No one listens to 80Hz tones Steve. This is real life and we listen to music at home. smh...

I almost replied then relised you'd slipped back into Thompson mode. *mosking*

There will be a prize for the poster who is able to maintain a Thompson pose for the longest time without anyone noticing.

Now that sounds like a fun game but it'd would be very confusing for any newcomers to the forum who don't know what's going on. *ROFL*

Hopefully they'll enter into the spirit, it being Christmas and whatever.

You can be sure that I will be entering some sort of spirit, or maybe some sort of spirit will be entering me... :)
 

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