1. ## Re: 4 18s in a wall, 94 astro

Originally Posted by PV Audio
That is because it's just measuring pure sound pressure in dB, which is why as I said, there are weightings to reflect how the human ear perceives loudness. Higher frequencies seem to be much louder to us than low frequencies. If someone played a 140dB tone at 25hz a few feet away from you, you really wouldn't be bothered by it. If they played the same one at 5000hz, you would be running out of the room.
Ah, seems viable to me. Thanks for the info.

2. ## Re: 4 18s in a wall, 94 astro

[QUOTE= so you yelling at 130db to your friend in a 125db car still registers as 130db to your friend's ears because that's the necessary loudness level for him to pick up what you're saying.[/QUOTE]

i know this sounded good when you wrote it but you lost in the sauce. milk and butter dont make eggs

3. ## Re: 4 18s in a wall, 94 astro

Originally Posted by PV Audio
You clearly don't know anything about physics because this is not true. If you wire your two subs out of phase with one another, you will be quieter than having just one.
nobody is talking about wiring subs outta phase, THAT WOULD BE CANCELATION OF SOUND.
ONE SUB + ONE SUB EQUALS MORE SPL
2 SUBS + 4 MIDS AND 4 TWEETS = MORE SPL

YOUR THEORY: it appears i actually have to put "FOR EXAMPLE"
IF:
1 SUB = 130DB
then
1 sub + 16 mids and 16 tweeters STILL = 130DB

GOOD JOB DIQ HEAD

4. ## Re: 4 18s in a wall, 94 astro

Originally Posted by PV Audio
You installing correctly is irrelevant when you get t-boned at an intersection and short out your 3000.1 and end up dying in a car fire.
than drive safer than

5. ## Re: 4 18s in a wall, 94 astro

Originally Posted by sub2weeker
nobody is talking about wiring subs outta phase, THAT WOULD BE CANCELATION OF SOUND.
ONE SUB + ONE SUB EQUALS MORE SPL
2 SUBS + 4 MIDS AND 4 TWEETS = MORE SPL

YOUR THEORY: it appears i actually have to put "FOR EXAMPLE"
IF:
1 SUB = 130DB
then
1 sub + 16 mids and 16 tweeters STILL = 130DB

GOOD JOB DIQ HEAD

6. ## Re: 4 18s in a wall, 94 astro

Originally Posted by PV Audio
your an idiot, in my equations. i was clowning your theory,

because

1 sub will = 130db

while

1 sub plus =16mids will equal 134+

but the tl will "ONLY" pull out the peak frequency

meaning sound is lost somewhere and the tl will not account for it

7. ## Re: 4 18s in a wall, 94 astro

This thread ***** big fat fupa

8. ## Re: 4 18s in a wall, 94 astro

Originally Posted by PV Audio
You installing correctly is irrelevant when you get t-boned at an intersection and short out your 3000.1 and end up dying in a car fire.
oh really??? and i dont suppose the damage by the "T-BONING" is gonna leave a scratch. your car is totaled period

9. ## Re: 4 18s in a wall, 94 astro

Originally Posted by annarbor84
This thread ***** big fat fupa
well i have to agree. my next post in here on my build thread will show my sd16k, and all my mids that im being told wont add to the overall spl of my vehicle

10. ## Re: 4 18s in a wall, 94 astro

Dude, are you STILL arguing this? I thought we went over this ad nauseum in that other thread.

Every single spl meter in the history of spl meters will only measure the SINGLE LOUDEST FREQUENCY. NO ADDING. NO MATH. NO FORMULAS. END OF DISCUSSION. QUIT BEING SUCH A FAGGY DOUCHEROCKET.

11. ## Re: 4 18s in a wall, 94 astro

how about u make a vid with you getting on a meter with ur sub stage off and your front stage on. than another vid with just the sub stage on and front stage off on a meter
and last with it normal both on.

12. ## Re: 4 18s in a wall, 94 astro

Originally Posted by tommyk90
Dude, are you STILL arguing this? I thought we went over this ad nauseum in that other thread.

Every single spl meter in the history of spl meters will only measure the SINGLE LOUDEST FREQUENCY. END OF DISCUSSION. QUIT BEING SUCH A FAGGY DOUCHEROCKET.
hahahaha
im using that tomorrow.... alex is a douchrocket.

13. ## Re: 4 18s in a wall, 94 astro

Originally Posted by tommyk90
Dude, are you STILL arguing this? I thought we went over this ad nauseum in that other thread.

Every single spl meter in the history of spl meters will only measure the SINGLE LOUDEST FREQUENCY. NO ADDING. NO MATH. NO FORMULAS. END OF DISCUSSION. QUIT BEING SUCH A FAGGY DOUCHEROCKET.
I tried using the actual theory to explain, but maybe this blunt approach works better

14. ## Re: 4 18s in a wall, 94 astro

Originally Posted by sub2weeker
oh really??? and i dont suppose the damage by the "T-BONING" is gonna leave a scratch. your car is totaled period
Oh my **** you are stupid. You can survive a t-bone collision without much injury. When you catch on fire, then you might think otherwise. Your car isn't what's important, its you potentially being trapped in a car fire when there didn't have to be one if you had just used a little piece of metal.

15. ## Re: 4 18s in a wall, 94 astro

Originally Posted by MakeshiftAudio
Actually, I disagree on some points.

Here's an easy example. Think of the Beats phenomenon. You have 2 waves that are similar in frequency(f) and are equal in amplitude(A). At points they will cancel out completely, and at other points they will have a cumulative amplitude of 2A, with a peak to peak beat frequency of |f1-f2|. This can be applied to any two frequencies, and many more actually, but it isn't as easy. This operation is the basic principal of AM transmission.

Regardless of the frequency, it will shift in and out of phase with another signal.

Wave and signal can be used synonymously as long as both of them are sinusoidal.
did you buy me a pizza steve

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