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LoRd LoRd is a male
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insearch :: speakers 0Hz-20Hz Reply to this Post Post Reply with Quote Edit/Delete Posts Report Post to a Moderator       Go to the top of this page

i am looking for speakers with a bandwidth of 0hz-20hz , i think it's very rare because people cant hear this frequency but can feel it . I am going to make my own lil soundsystem for parties for friends so max people is 20-30 and for monitors if i play in my bedroom so it shouldn't be a big soundsystem but it has to have a lot of bass and quality . Anyone got some info on it or tips for building your own soundsystem? Sinds I don't have money it is going to be a work in progress thing and as i get money the soundsytem should become bigger .

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29-10-2003 13:37 Send an Email to LoRd Homepage of LoRd Search for Posts by LoRd Add LoRd to your Buddy List
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RE: insearch :: speakers 0Hz-20Hz Reply to this Post Post Reply with Quote Edit/Delete Posts Report Post to a Moderator       Go to the top of this page

I don't think you're going to find such speakers with such frequency range. I made my own speakers a few years ago and found out it still costs a lot of money, and a lot of studytime to make some descent pair of speakers, and I'm still not satisfied with the sound they produce. Try to study a lot of acoustics and analogue filter design if you want some descent material.

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29-10-2003 17:18 Send an Email to Iridium Homepage of Iridium Search for Posts by Iridium Add Iridium to your Buddy List
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Frequencies below 40Hz are useless. They consume a lot of power to get some 'sound' out of it and they can seriously fuck up the bass. It will all sound muddy and undefined. If you want to hear a lot of bass, it's even better to filter off everything below 50Hz, that leaves more power for the usable low frequencies.

If you want to build them you'll need 18" woofers, which are so slow and heavy that you need something like a 2000W amp with an enormeous damping factor to drive them. A decent amp that can deliver that will cost you at least 3000 euro...

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29-10-2003 19:45 Send an Email to thechronic Homepage of thechronic Search for Posts by thechronic Add thechronic to your Buddy List
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Lord you are fucked up mate!

Anyway, I heard frequencies below 6hz can couse brain damage. No idea if it is true tho.

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29-10-2003 20:35 Homepage of Surya Search for Posts by Surya Add Surya to your Buddy List
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arent there a lot of waves constantly going around below 6hz? i also heard about a lethal frequency, but i doubt that's true
30-10-2003 00:14 Send an Email to CH3M!K Search for Posts by CH3M!K Add CH3M!K to your Buddy List
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Yeah, I know, I wondered about that too.

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30-10-2003 00:33 Homepage of Surya Search for Posts by Surya Add Surya to your Buddy List
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0Hz to 20Hz? Human eardrums only hear down to +-35Hz and not even every human being will be able to hear those tones...
Best thing you can do is buy a few serious subwoofers imho... but it fscks up the sound bigtime on high volumes... Frown

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30-10-2003 11:12 Send an Email to 3rr0rc0d3 Homepage of 3rr0rc0d3 Search for Posts by 3rr0rc0d3 Add 3rr0rc0d3 to your Buddy List
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quote:
Originally posted by CH3M!K
arent there a lot of waves constantly going around below 6hz? i also heard about a lethal frequency, but i doubt that's true


Nah, 'cause then we would have a worldwide (sound)destruction...
Tones under 6Hz are constant... comin' from wind, earthslides (however minimal they are), even ppl talking in the distance and stuff...
Besides, if that was true, Bush & Sadam would have a fullscaled war on speakers Wink

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I think the loudness is more important than the frequency of lethal sound Big Grin

If it's loud enough it will kill you, but it helps ofcourse if you focus on specific frequencies, eg the resonant frequency of the spine Big Grin

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Damn Pieter, you're EVIL Big Grin

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30-10-2003 20:03 Homepage of Surya Search for Posts by Surya Add Surya to your Buddy List
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I've read some articles on acoustic weapons and i've learned that everything above +-150db is bad for the human body . But everything below 20hz is infrasound and it interacts with the body. So I thought i could make a system with low frequencies so you can play with the feeling of the body. The valve soundsystem gives you a poundn' bass you can feel and i wonna generate it because there is slim to non information on the specs of valve ss.

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I'd bet on the valve sound system cutting everything off below 40Hz to give more power to the real bass between 60-200 Hz Big Grin

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Probably. But this is even low enough to make anything tremble like hell Big Grin

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07-11-2003 10:51 Homepage of Surya Search for Posts by Surya Add Surya to your Buddy List
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read this summer an article about a band (in the 80's, dunno the name no more) who made music with these very low tones... they used to wear pampers cuz some tones just made people shit their pants! Big Grin looool

cheerz

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In summer vacation i wanted to make my own speakers as well... But like said before... still lots off money... mutch think work... i found this book..


YEAH YEAH SURYA Smile

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This post has been edited 1 time(s), it was last edited by MaydaY: 10-11-2003 20:17.

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Looks like an interesting book.

But I don't think you founded it, I think you found it Tongue

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09-11-2003 22:10 Homepage of Surya Search for Posts by Surya Add Surya to your Buddy List
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A speaker that produces a frequency of 0 Hz is impossible... Wink
06-12-2003 23:14 Search for Posts by Formula Add Formula to your Buddy List
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Indeed, quite obvious Big Grin

No in fact it isn't. 0hz is absolute silence, and every speaker is capable of playing that Tongue

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07-12-2003 00:23 Homepage of Surya Search for Posts by Surya Add Surya to your Buddy List
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quote:
Originally posted by Surya
Indeed, quite obvious Big Grin

No in fact it isn't. 0hz is absolute silence, and every speaker is capable of playing that Tongue


not quite, theoreticcaly frequency is the opposite of period (time duration), so a 0Hz frequentie would mean a wave with an endless duration.

if u stretch this theory further, you would actually indeed be right, because of stretching the signal to endless, the amplitude (loudness) would become 0, so silence anyway. Big Grin

Offtopic & way to technical explanation probably, but wtf

& another fact, every speaker has about 10% THD, so even if you put absolutely no signal in it, you will still have a very few dB's of noise, unless u cut tha power ofcourse Wink

just can't quit today, those body resonance frequencies are actually used in magnetic resonance scans, wich is @ the moment the most advanced technique of medical imaging, so making noise does have its usefull kind of ways....& this scanning technique no longer requires the "dangerous" extremely high frequent radioctive radiation.

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This post has been edited 2 time(s), it was last edited by djfreemc: 07-12-2003 14:31.

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quote:
Originally posted by thechronic
if you focus on specific frequencies, eg the resonant frequency of the spine Big Grin


*SNAP*


resonant evil anyone? Big Grin

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