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speaker sensitivity and loudness?

roseskunk

roseskunk

Well-Known Member
hi guys- i apologize in advance if this question has been answered as i'm sure it must have, but i can't seen to get the search thread to work for me...

what's the relationship to speaker sensitivity and loudness? i just bought a ma-6900 for my nsm monitors- their rated sensitivity is 82.5. i thought they'd actually be louder than they are as i was using a sansui 719 to run them, 65? wpc vs. 200... and it doesn't really seem that they're much louder at all. (they sound great, really great in fact, but not a lot louder.) will a speaker rated at 90 be appreciably louder? what's the relationship? thanks in advance.
 
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A short answer....

..is that the efficiency ratings you're most likely to see are number of decibels (db) at 1 meter distance from the speaker with one watt of power. 82.5 is about as low as I've personally heard as a spec.

What kind or brand of speaker is that, and what is the maximum continuous power rating????:scratch2:
 
Assuming the sensitivities were measured using the same procedure, the 90 dB speaker will play 7.5 dB louder than the 82.5 dB one for the same input power level.

Since dB expresses a ratio, it doesn't matter what the absolute power level is, generally. At max power, your 200W amp will play either of them a mere 4.88 dB louder than your 65W one, not enough to crank that 82.5 dB speaker up to the same loudness the 65 dB amp will play the 90 dB speaker.

[I THINK that's right.... :p: ]
 
hi guys- thanks. the brand is NSM and the model is 10s. i don't think i can post a link or i would. they're really great little speakers, have great reviews, but it seems that no one has heard of them. a while back i asked if anyone else on ak owned a set, and i don't think anyone else had... these little things are tiny and they're not ported but they sound great, maybe that's why they require so much power.

and excuse my ignorance, but the 7.5 dB difference between 82.5 and 90- is that a noticeable increase in volume?
 
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