dba?

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snhtown

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Posted: December 07, 2006 at 12:50 PM / IP Logged

what is the importantce to the dba spec? i remember reading a thread a while back that talked about it, but i could not locate it

DYohn

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Joined: April 22, 2003

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Posted: December 07, 2006 at 1:54 PM / IP Logged

dbA means the sound pressure reading is "A-weighted." A-weighted readings are filtered to simulate the natural response curve of the human ear. It is not a very accurate way of representing the performance of a piece of gear, but it is sometimes useful to predict how loud a full-range output will sound to the average listener.

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tcss

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Posted: December 07, 2006 at 5:34 PM / IP Logged

Actually in the car audio world it means "doing business as"

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snhtown

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Posted: December 08, 2006 at 9:00 AM / IP Logged

so if something has a 94 bda rating vs a 104 dba, what is a beter number?

DYohn

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Posted: December 08, 2006 at 9:56 AM / IP Logged

snhtown wrote:

so if something has a 94 bda rating vs a 104 dba, what is a beter number?

Neither. It means one is 10db louder at 2500Hz. What is it and what's it for?

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snhtown

Copper - Posts: 178

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Posted: December 09, 2006 at 4:14 PM / IP Logged

its just a random question if anything, i was reading a post somewhere that talked about the db ratings, and i notice someone was talking about a zapco amp and its db rating and why it was so much beter because of its rating, so i guess the 2 things made me wonder.........

DYohn

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Posted: December 09, 2006 at 4:39 PM / IP Logged

Sounds like you are now talking about S/N or signal to noise ratio, which is measured in decibels (db) but is completely different from a dbA number. What exactly are you talking about?

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snhtown

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Posted: December 09, 2006 at 5:50 PM / IP Logged

what is s/n? and what is it's importance?

DYohn

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Posted: December 09, 2006 at 5:53 PM / IP Logged

snhtown wrote:

what is s/n? and what is it's importance?

It's a measure of the amount of noise produced in a system. Higher S/N numbers are better. What specs are you trying to compare? Please give me an example.

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dba?

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