lowest bass frequency

[ismail]

what is the max lowest bass frequency for the movies

i have heard some movies go to 20hz

is it ture

if

so

then

i have a a ksw-10 it goes to only 29hz according to

the specifications.

am i missing some of deep bass or frequency?

or is it ok?

i have also heard that normal human ear can't hear

below 20hz and if a person is of 20+ in age

then he can't hear normally anything below 30hz

it is a scientific theory ...is it true?

any one has any idea.

[Woodog]

Most bass you hear is above 20hz. The 16' organ pedal's lowest note is ~32 hz. a 32' organ stop has a fundamental tone os 16 hz. You 'feel' this more than hear it, and what you actually hear is the upper 'partials' of the note.

Rumbles, explosions, etc probably dip way below 20hz.

[Colin]

I can hear from about 30 to 10kHz at 75db SPL (louder than normal conversation) at sweet listening spot as measured slowly on C scale with Radio Shack analog meter. I am in mid-40s. Studies show however that humans can discern a different difference with frequencies as low as 5Hz and as high as 25kHz. A modest actively-powered, solid-state subwoofer, like the KSW10 does have output below 30Hz, just NOT enough to boost it up to the level where you can hear it. Youthful hearing at certain SPLs is very sensitive: at 70dB is it supposedly from 330Hz to almost 1kHz, then again from about 3KHz to 6kHz. Here is where the young are most sensitive:

80dB: 300 to 6kHz

90dB: 100 to 6kHz

100dB: 25 to 6kHz

110dB: 1000 to 7kHz

[sfogg]

Some movies go well below 20hz... check out the waterfall plots on some of the movies here...

http://svsubwoofers.com/faq.htm#moviedemos

Shawn

[CAS]

----------------

On 2/7/2005 9:34:13 AM ismail wrote:

i have a a ksw-10 it goes to only 29hz according to

the specifications.

am i missing some of deep bass or frequency?

or is it ok?

i have also heard that normal human ear can't hear

below 20hz and if a person is of 20+ in age

then he can't hear normally anything below 30hz

it is a scientific theory ...is it true?

any one has any idea.

----------------

-Are you missing frequencies?

Of course. There is significant material in modern movies below 29Hz.

-Is it ok?

That's up to you. I personally wouldn't have a home theater without good strong reproduction below 20 Hz. But that's my preference.

Can people hear below 20 Hz?

Not generally, but that's where subwoofers are more felt than heard. Most of the subsonic experience is tactile, which is what I enjoy most from a sub.

Can one 20+ in age hear below 30Hz?

I'm 27 and it's pretty clear. 20Hz? That's not so clear, but it does rattle the teeth.

[Colin]

maybe you should look at butt kickers and couch shakers...

[Guest Anonymous]

if your hearing is damaged at 20 hz then you are completly deaf.. because your ears abilities to hear will be affected from top to bottom that is why when people get older the haring cutoff is around 16000 hz

[j-malotky]

Even if you can't hear below 20hz, you can still feel / experiance SPL below 20hz.

JM

[CAS]

----------------

On 2/7/2005 7:57:33 PM Colin wrote:

maybe you should look at butt kickers and couch shakers...

----------------

I believe if the speakers aren't reproducing the material sonically then it shouldn't be felt. I wouldn't wan't to add false high frequency material either.

[michael hurd]

I own 4 Aura bass shakers, the 50 watt "pro" version. I have had all 4 driving my overstuffed chair, powered by a yorkville power amplifier. While they will not replace a subwoofer by any means, they will definately augment a subwoofer in delivering tactile sensations.

Later on, I may look into a higher force unit, like the clark tactile transducers or the buttkicker II.