Here's an article that should be treated as if it were a bible....well, even more important as its based on facts.....

Just some typical lies, and if you're getting into car audio and into home audio - its worth knowing whats the truth, and whats pure garbage......

Page 5 of this PDF....well worth a read...

Lie numbers 1, lie 2 (a/b amps vs class D), lie 4, lie 6, and possibly 9 apply to car audio to a certain extent.....the rest is just good to know if you love your audio gear.

http://www.theaudiocritic.com/back_issues/The_Audio_Critic_26_r.pdf

well, even more important as its based on facts.....
Be careful where you tread with that one mate lol ;)

I think they could have tackled some more profound lies of the car audio world in there, but anyway.

worst load of crap ever, its like, lets pick the most bizaree things nobody gives a **** about and make it into the top 10 biggest lies

my number 1 would have been about capacitors

Why is this posted in car audio?

*sigh*

We got some pretty smart car audio guys in here... why don't we get the ball rolling and compile a top 10 lies of car audio...

I would say some lies that might be relevant for this section besides capacitors might include:

Peak power figures for amp output
The relevance of power figures for speaker handling
3 way / 4 way / 5way coaxials better than 2 ways
Ported sub boxes are louder therefore better

etcetc

Oh and you need your speakers up high to have a high sound stage

Oh and you need your speakers up high to have a high sound stage

That one's new to me. Sweet, I learned something already.

there is no such thing as the brown noise.

biggest lies in car audio.....

spl readings.... for one there is no way in hell a sony explode 12" or even 2 can get anywhjere near 130db or pretty much any of the other systems people buy at there local supercheap/autobarn/jb hifi stores.

truth is if you have a system pumping out those figures it is louder then a jet engine. also it is louder then any concert you have been to. as its techinically illegal for any concert to play over 110db as it will cause perminent damage to people hearing.

if you cant tell this is something that relly gets on my nerve haha

biggest lies in car audio.....

spl readings.... for one there is no way in hell a sony explode 12" or even 2 can get anywhjere near 130db or pretty much any of the other systems people buy at there local supercheap/autobarn/jb hifi stores.

truth is if you have a system pumping out those figures it is louder then a jet engine. also it is louder then any concert you have been to. as its techinically illegal for any concert to play over 110db as it will cause perminent damage to people hearing.

if you cant tell this is something that relly gets on my nerve haha


I hope you havent abused too many people for saying their systems do 130dB :S

Heres some truths:

A jet engine is ~130dB at something stupid like 100 meters away
The frequency of a jet engine is many octaves higher than subbass, therefore much more damaging to the human ear
Subs are measured from the windscreen in most competition (around 1.5m)
I have a single 10" sub thats done 138dB, why couldnt 2 Sony 12's?
Put a decibel meter at the port of a box, and again it would read hundreds of times louder than it does at the windscreen
I have sat in over 160dB, and i'm fine.
A concert is also measured at a distance a lot further than a car subwoofer.

I hope you havent abused too many people for saying their systems do 130dB :S

Heres some truths:

A jet engine is ~130dB at something stupid like 100 meters away
The frequency of a jet engine is many octaves higher than subbass, therefore much more damaging to the human ear
Subs are measured from the windscreen in most competition (around 1.5m)
I have a single 10" sub thats done 138dB, why couldnt 2 Sony 12's?
Put a decibel meter at the port of a box, and again it would read hundreds of times louder than it does at the windscreen
I have sat in over 160dB, and i'm fine.
A concert is also measured at a distance a lot further than a car subwoofer.

Considrig the biggest PA systems in the world dont really hit 130 db sitting right in front of them (and yes i know what iam talking about. worked for years as a sound engineer and for large scale shows ) im sure your single 10 is punching out a true 138 db.

doesnt matter what the frequency is if u have sat in a true 160db your ears would be death... FACT read any doctors advisory etc

Have u ever been to an SPL comp?

Ear damage comes from exposure over time, 110 db over a long enough period will do damage, high levels over a short enough period can do very little damage.

The biggest PA systems are not jammed into a tiny car, they are open air.

The Australian record was around 169 db in a car. World is around 180.6.

A single 10" in the right car/box can do that, those numbers aren't massive

Everyones a sound engineer nowadays :)

wasnt there a dude on MEA getting ~140dB out of a couple of rampage subs? he wasnt a newbie talking **** either.

its probably possible with rampage subs in the right car, with the right setup etc

yea mate of mine, Dave, the rampages were in a CRX, in the 'CRX Box' setup, renound for being one of the loudest in car setups for 2 10" subs in the world. If i recall he hit around 145dB with them.


As for the whole 'Those SPL figures arent real' bit.. seriously dont think your mr expert until you have your facts straight. the pressure sensor used to measure these is a pre-calibrated sensor, with no way of 'fiddling with the dial' as opposed to previous years, what the sensor says is what it is.

Frequency plays an extremely large part in what sound does to your ears, you must have been a really bad sound engineer. play 20khz and we wont notice a thing, but a dog will go mental.. but play 2khz and we will go mental, and the dog will just sit there. the ear does not have a linear response. Go research 'termlab' in google or something, learn a bit before hitting the 'reply' button, we will appreciate it much more if you do :)