Doubling Power - 3 db Increase?

[Tinted 10+ year member]

If you double to each speaker, yeah, but if you just double the total power to all 3 combined, mathematically you'll see 3db.

bro, you can gain 3 db's you can gain 10 db's and u can not gain anything. like i said, it's all speaker dependant. efficiency is the key.

if you have 3 speakers getting their RMS rated power, you are not going to gain 3 db's if you double or tripple what they are already getting. efficiency goes out the window and so does your gain.

this theory applies only half way. it is all about effective cone movement.

we've been testing this theory hard. done in 3 different cars with 3 different set ups, boxes and power amounts.

 

[Tinted 10+ year member]

OR

if you have a speaker thats rated to do 500 watts and you are sending it 250 watts, if you double the power going to that one speaker to 500 watts you might even see more than 3 db gain give you have a proper box.

power is a variable that is up to you, speaker efficiency is the fixed variable that helps you and your gain is the outcome of this formula.

 

[PSturmer 10+ year member]

the car environment isnt perfect or anything near perfect. rules like this just dont work and are not reliable. my truck gains 4db easily from either doubling power or cone area.

 

[Xprime4 10+ year member]

what about feeding a sub less than half its rated power. Can i atleast expect more than 3db gain givin 500watt to my 18Q while i'll be giving it 1500 soon

 

[James Bang 5,000+ posts]

when a female gets double penetration, would it give her double the pleasure?

 

[Bass Addict 10+ year member]

ummm YES //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[newusername 10+ year member]

Double power is 3 dB.

Double cone area is 3 dB.

Doubling power and cone area is 6 dB.

Increasing power by a factor of 10 is 10 dB.

Increasing cone area by a factor of 10 is 10 dB.

10 dB is approximately twice as loud to the human ear.

If you need to see the math and physics, use google.

These conditions are true when:

- The driver remains linear

- Every condition remains the same (ie. enclosure alignment, source material, environment, etc.)

The reason you don't see this in real life is mostly because the driver runs into thermal compression or BL and Cms non-linearities before you reach the rated power handling of the driver. As you pass that point, it gets even worse. Additionally, people may add second or third drivers and drastically change both the alignment and the behaviour of the environment, so the comparison is again invalid.

This is another perfect example of writing off the theory without understanding the conditions in which it is true, nor acknowledging how it can be applied to systems.

 

[Tinted 10+ year member]

Double power is 3 dB.Double cone area is 3 dB.

Doubling power and cone area is 6 dB.

Increasing power by a factor of 10 is 10 dB.

Increasing cone area by a factor of 10 is 10 dB.

10 dB is approximately twice as loud to the human ear.

If you need to see the math and physics, use google.

These conditions are true when:

- The driver remains linear

- Every condition remains the same (ie. enclosure alignment, source material, environment, etc.)

The reason you don't see this in real life is mostly because the driver runs into thermal compression or BL and Cms non-linearities before you reach the rated power handling of the driver. As you pass that point, it gets even worse.

This is another perfect example of writing off the theory without understanding the conditions in which it is true, nor acknowledging how it can be applied to systems.

you do know that this theory doesnt work like this in rea life, right?

you meaning to tell me that if i have a 1000 rms speaker and instead of givint it 1000 clampped watts if you give it 3000 clampped watts you will gain 3 db's? that will NEVER happen. not in car audio.

 

[Tinted 10+ year member]

what about feeding a sub less than half its rated power. Can i atleast expect more than 3db gain givin 500watt to my 18Q while i'll be giving it 1500 soon

probably close to that, yes. if its getting much less than rated power now, it should gain nicely with it gets rated power.

 

[Mr. Slate 10+ year member]

Tinted, don't waste your time with these "pros".

 

[squeak9798 5,000+ posts]

you do know that this theory doesnt work like this in rea life, right?
you meaning to tell me that if i have a 1000 rms speaker and instead of givint it 1000 clampped watts if you give it 3000 clampped watts you will gain 3 db's? that will NEVER happen. not in car audio.

Reread what he wrote //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[newusername 10+ year member]

edit: Please re-read what I posted, beginning to end.

 

[RAM_Designs 5,000+ posts]

Reread what he wrote //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

That's too difficult. What's easier is reading the first few lines and ignoring the rest...he's trying to seem like a know-it-all, and it's not working very well.

 

[roarzorz 10+ year member]

you do know that this theory doesnt work like this in rea life, right?
you meaning to tell me that if i have a 1000 rms speaker and instead of givint it 1000 clampped watts if you give it 3000 clampped watts you will gain 3 db's? that will NEVER happen. not in car audio.

Calm down and quit acting like Mr. know it all. DevilDriver was stating the theories. How about take the time to actually read what he said. Specifically at the bottom.

 

[Tinted 10+ year member]

edit: Please re-read what I posted, beginning to end.

oh my bad, yah you are right. the actual gain can vary.