dubstep bass response

metaverse · Post by **metaverse** » Fri Sep 05, 2008 10:06 pm

hey folks,

I've never got a flat out answer for the average bass response level on songs in dubstep ...

I've always assumed that it drops to 30hz ... Is this accurate?

i'm looking to build a PA system and it seems that dropping below 40hz is going to up the cost considerably because it takes much more power to kick out such low, thick and heavy bass tones ...

distro · Post by **distro** » Sun Sep 07, 2008 10:13 pm

very few songs will goto 30hz

black lotus · Post by **black lotus** » Sun Sep 07, 2008 10:17 pm

on a lot of home theater / car audio / live PA systems i've seen, the crossovers tend to begin dealing with sub at around 80hz.. so i would say somewhere in the range of 50hz - 80hz..

whatever this is worth

spire · Post by **spire** » Mon Sep 08, 2008 9:13 pm

that low low barely there sub note in RUF's "Want Some Crack?" is 35-36hz, just to give an example of how low that is.

but i do know a guy who has a system that puts out 130db?(maybe 140, cant remember) at 20HZ! 20!

mike honcho · Post by **mike honcho** » Sun Sep 21, 2008 6:45 pm

40-80 is average i would say at least fo me

anthonyfromtheuk · Post by **anthonyfromtheuk** » Mon Sep 22, 2008 12:52 am

Spire wrote: but i do know a guy who has a system that puts out 130db?(maybe 140, cant remember) at 20HZ! 20!

Can we hear 20Hz

djake · Post by **djake** » Mon Sep 22, 2008 1:20 am

Anthonyfromtheuk wrote:
Spire wrote: but i do know a guy who has a system that puts out 130db?(maybe 140, cant remember) at 20HZ! 20!
Can we hear 20Hz

i fink so, cant remeber if its 25hz or 20hz that we can hear down to

but i bet ur could feel it

anthonyfromtheuk · Post by **anthonyfromtheuk** » Mon Sep 22, 2008 1:23 am

cool il just looked it yup yeh 20Hz

i have never had speakers that go that low, Im missing out...

djake · Post by **djake** » Mon Sep 22, 2008 1:28 am

to be able to hear u need alot of speakers, the bigger the rig the lower it goes usally, i fink...im no expert, so that could be wrong

slothrop · Post by **slothrop** » Mon Sep 22, 2008 1:39 am

Anthonyfromtheuk wrote:
Spire wrote: but i do know a guy who has a system that puts out 130db?(maybe 140, cant remember) at 20HZ! 20!
Can we hear 20Hz

Can we hear 140db? I mean, without our brains coming out of our ears?

We're getting into jet engine territory there IIRC.

james fox · Post by **james fox** » Mon Sep 22, 2008 7:58 am

no point in going super low, 95pc of club systems won't be able to flex it and your tune will just sound like it has no bassline.

IMO of course

setspeed · Post by **setspeed** » Mon Sep 22, 2008 2:00 pm

^^^

through my, er, empirical testing, i have found that most club systems don't go much below about 43Hz, or low F....

black lotus · Post by **black lotus** » Mon Sep 22, 2008 2:03 pm

setspeed wrote:^^^

through my, er, empirical testing, i have found that most club systems don't go much below about 43Hz, or low F....

yeah that seems right.. like i was saying earlier, in home theater for movies and whatnot most subs roll off at 40.. you can usually set the crossover point somewhere between 80-100hz.. it's pretty much universal across the board. some subs can knock @ 20hz but, it's still barely audible.

generally, you should roll off anyway otherwise it will just sound like mud.

Slothrop wrote: Can we hear 140db? I mean, without our brains coming out of our ears?

here is a chart for the "threshold of pain"

http://en.wikipedia.org/wiki/Threshold_of_pain

vendetta · Post by **vendetta** » Mon Sep 22, 2008 4:15 pm

setspeed wrote:^^^

through my, er, empirical testing, i have found that most club systems don't go much below about 43Hz, or low F....

second what ^this^ and the post before it said, i take it you want to know for making tunes, - check out the production bible first for different instrument's native pass-bands, but the're various points in 'sound chain'? which mean its hard to know what to aim for in your tunes:

20hz is barely audible, you need a serious soundsystem/ amount of power to produce these frequencies at high db's. []

most vinyl is high passed at 35hz to begin with,and most needles response curves tail off sharply in the sub 40hz [check the specs of your favorite stanton cart + stylus]. (So in theory this is which Serato style setups should have a wider bandwidth, if their sound cards are up to it).

But turntables (depending on their isolation) pick up sub harmonics giving them their signature analogue/saturated sound, which goes some way to filling out the bottom end anyway, you can emulate that digitally.

for general playing out i wouldn't go much below 40hz [and much above 70] for sub.

anthonyfromtheuk · Post by **anthonyfromtheuk** » Tue Sep 23, 2008 6:17 am

Anthonyfromtheuk wrote:i have never had speakers that go that low, Im missing out...

I brought a new sub yesterday and it goes down to about 20, did a lil simple sythesis in sound forge 20hz to 30hz sine wave over 10 seconds can acctually hear it! but i see what everyone above is saying that low really is a bit pointless

spiro · Post by **spiro** » Tue Sep 23, 2008 7:49 am

vendetta wrote: most vinyl is high passed at 35hz to begin with,and most needles response curves tail off sharply in the sub 40hz [check the specs of your favorite stanton cart + stylus]. (So in theory this is which Serato style setups should have a wider bandwidth, if their sound cards are up to it).

ortofon needles is going 20-20.000Hz . . .
what specs can I use to understand their response curve from 20-40 Hz ?

whineo · Post by **whineo** » Tue Sep 23, 2008 9:39 am

was thinking about this the other day whilst pitching up the samples in a tune to make the bass line a little higher in the Freq range

Was thinking back to the last time I saw Mala or loefah play on a function 1 system
Im sure that some Bass lines were definitely going lower than 40hz

So whipped out an analyser of a few reference tunes at home and I rekon as low as 35hz for some tunes?

tend to avoid going below 40hz out of fear --- whats the general consensus?

black lotus · Post by **black lotus** » Tue Sep 23, 2008 2:03 pm

Whineo wrote:was thinking about this the other day whilst pitching up the samples in a tune to make the bass line a little higher in the Freq range

Was thinking back to the last time I saw Mala or loefah play on a function 1 system
Im sure that some Bass lines were definitely going lower than 40hz

So whipped out an analyser of a few reference tunes at home and I rekon as low as 35hz for some tunes?

tend to avoid going below 40hz out of fear --- whats the general consensus?

you know, really i think you could roll off exactly @ 20hz and still have great bass. i know when i'm in FLS i am always cutting out the ultra subsonics that are inaudible, but i found sometimes it kills the body of the sub if i do it above 25-30, depending on the arc of the roll-off.

claw · Post by **claw** » Tue Sep 23, 2008 2:32 pm

i got a tune with a solid 20hz note in there.....cant really hear it unless its a monster subwoofer, and a nice crossover that isnt rolled off though

elbe · Post by **elbe** » Tue Sep 23, 2008 3:04 pm

I think the general consensus is a health young human can hear down to about 20Hz and up to 20,000Hz.

This being said I often roll of sub at 30-40Hz, I don't know what is standard for the music you are listening to but imo the lower you can go, cost permitting, the better

dubstep bass response

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