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Re: Loudspeaker recommendation

Subject: Re: Loudspeaker recommendation
From: "Grant Finlay" grantfinlay
Date: Wed Jan 6, 2010 2:36 pm ((PST))

Many companies offer portable PAs, use the below to work out the most suita=
ble on offer.

(from website)
Example: You are designing a system where the farthest listening position f=
rom the loudspeaker is 100 meters, and the desired Sound Pressure Level is =
85 dB SPL The loudspeaker chosen for the job has a sensitivity rating of 95=
 dB. With the minimum recommended amplifier headroom of 3 dB, then you need=
 to choose an amplifier that can supply at least 1,995 watts to the loudspe=

Here's some more helpfull reading.


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