[asterisk-users] How to calculate number of speakers needed for PAGING and INTERCOM coverage area?

[bruce bruce]

Well, these are horn speakers with 30 Watt which will receive 10 Watt only
from Amplifer. I am not connecting them to ceiling so maybe 10 feet off the
ground. I guess my coverage would be better???

Based on your calculations for for 40k sqfeet that would be 33 speakers. I
think that's way too much of an overkill.

thanks,
Bruce

On Mon, Jul 12, 2010 at 1:05 AM, C F <shmaltz at gmail.com> wrote:

> In my experience using height for radius works, for example if you
> have a 20 ft high ceiling then the coverage for one speaker would be
> 40 ft diameter circle (around 1200 sq ft). Of course overlapping 5 ft
> has never killed anyone, but this really depends on the power of the
> speaker, I usually deal with 70v speakers tapped at 16 or 8 watts
> depending on how many speakers I put on one amplifier and the output
> wattage of that amplifier.
>
>
>
> On Fri, Jul 9, 2010 at 2:29 AM, bruce bruce <bruceb444 at gmail.com> wrote:
> > Hi Guys,
> > I am looking to buy a 25 Watt output CyberData VoIP amplifier and to use
> 2
> > Bogen sp308a speakers with it for a 40, 000 squar feet area and 21 feet
> > height. Is that enough? Is there calculator online I can use to determine
> > the number of speakers needed? I guess these speakers go in chain so I am
> > not sure if the full capacity of the speaker (30 watt) will be used.
> > I appreciate your advice.
> > Thanks,
> > Bruce
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