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  #31  
Old 12-29-2022, 10:10 PM
clpetersen clpetersen is online now
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Originally Posted by FreddieFerric View Post
If you have an iPhone or Android device download the db meter app. My room typically reads ~42 db. I'm not sure how the ambient background noise factors in to the overall db level when playing music, but something in me suggests it does.
You are right. It is useful when figuring out just how much amplifier you need (or think you need )

Here is a calculator from Crown - have fun!

https://www.crownaudio.com/en-US/too...power_required

Basically add the desired dynamic range you desire to the noise floor for max SPL and fill in the rest)
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Last edited by clpetersen; 12-29-2022 at 10:28 PM.
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  #32  
Old 12-29-2022, 10:27 PM
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Originally Posted by clpetersen View Post
Here is a nice calculator from Crown - have fun!
https://www.crownaudio.com/en-US/too...power_required
Thanks for the link.
That appears to work 'reasonably well'. I plugged in 92db, 3meter distance and 3db of headroom and got 45wpc for the 88db Duetto. My INT-25, when measured by JA during the Stereophile review, put out 50wpc @ 8ohm before moving into distortion (1% THD). I'm guessing that it was pretty much pumping out about all its has to give at the 92db SPL. I normally listen with volume at 25-35 (out of a total of 63) and am at 75db SPL, give or take, depending on the music.
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  #33  
Old 12-30-2022, 11:41 AM
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Quote:
Originally Posted by clpetersen View Post
You are right. It is useful when figuring out just how much amplifier you need (or think you need )

Here is a calculator from Crown - have fun!

https://www.crownaudio.com/en-US/too...power_required

Basically add the desired dynamic range you desire to the noise floor for max SPL and fill in the rest)
Terrific! Thank You!!!
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