Calculate how loud your loudspeaker is?

The effect in Watt doesnt really say how loud a speaker is going to be, but it is half the story.
Sensitivity is the data you need to calculate the total sound pressure level (SPL)
This data is given in decibels (dB), and it tells how many decibels the given speaker has when you use 1 watt and are measuring at 1 meters distance.
Next thing you need to know is that it takes twice the power to raise the sound pressure level with 3dB.
That means starting from the sensitivity with 1 watt, you can now double the power and increase by 3dB until you reach maximum sound pressure level.
Lets take the example of 90dB sensitivity, then at 2 watt you will have 93dB, 4 watt 96dB, 8 watt 99dB, 16 watt 102dB, 32 watt 105dB, 64 watt 108dB etc. until you reach your maximum power that the speaker can handle.

With numerous years of serving high-end audio clients under my belt, I am excited to offer a speaker repair and upgrade service that's sure to meet your needs. I apply the intricate process demonstrated in my videos, ensuring that your speakers are handled by an expert. For advice or packaging inquiries, please don't hesitate to contact me. If you're within the Las Vegas area, drop-off or potential pick-up can be arranged.

Kind regards
Kent Larsen

[JagiChan]

Great explanation; and the math was quiet easy on the brain too.👌

[Ryezn]

even simpler 10 times the power means 10dB increase in sound pressure ... 100 times the power means 20dB increase...

[miot]

You can use the 10*log(xW)= y dB formula. This will give 2x power = 3dB, 10x power = 10 dB.

[dandonna]

I was looking new speakers Klipsch RF-7 III they said in the specs 100 db sensitivity? is this possible when there are $10.000 speakers are avenging around 90 or less sensitivity?

[djough]

Thanks for a great explanation that I can easily understand.

[professionalslivesstyleind]

Nice video. Good explanation. Helpful.
Blessings
Best compliments 2020

[dandonna]

My speakers are 120-150 watts 85-87db with have amplifier 240 watts???

[srivet]

I understand that this amp is requesting 2ohm speakers per connection. So, what would be the better solution for just the corners in the dash. Understanding that the frequency is already restricted to (an assumed) 300 and up
4ohm 40w RMS (80w peak) @ 72.5 dB internally crossed tweeter in parallel with a 4ohm 20w RMS (40w peak) @ 85 dB mid for a 2ohm end
Or
3ohm 25w RMS (75w peak) @ 91 dB

[nenginickol]

Good explanation. I have a DIY project to build a 3way speaker system. Eg. Two 12inchLF, Four 6.5inchMF, and 2tweeters, please advise, what pattern is proper way to connect the speakers to the crossover then to the amp in series or parallel?

[sethflix]

I watched this whole video and I still don't understand.

[dallashanneman]

2 10” subs 900w rms 1800w Max 83.6@ 1w/1m scoring 141.66 spl

[parasahlawat]

which one is going to be better 110w 82dB vs 30w 90db

[privateaccountuser]

Script your pitch and rehearse a few times before recording, then record a few "takes" for editing choices. This video could easily have been 3 minutes shorter. Also, use ample lighting from BOTH sides of the room, diffused to avoid glare. A little attention to your video production values, goes a long way. And a black or blue marker is easier to read - color blind people included. And clear away that clutter from all across the lower area of the view - EVERYTHING not related to the topic. Lastly, dressing semi-professionally, at a minimum, appears more credible than your chosen attire here.