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

[C F]

I'm happy to hear it worked out so well with so little. :)

On Wed, Jul 14, 2010 at 12:39 AM, bruce bruce <bruceb444 at gmail.com> wrote:
> Thanks for the input guys. For other refrence, a CyberData Voip Amplifier
> which supplies 10 Watt to each of the two bogen 30 Watt speakers did the job
> for a 35,0000 square feet warehouse with environmental noise level of
> slightly higher than standard but not those of industrial.
> Only two speakers and done deal. Though I know that three speaker would have
> been the perfect solution but 4 would cover every single little corner and
> be an overkill.
> -Bruce
>
> On Tue, Jul 13, 2010 at 8:47 PM, C F <shmaltz at gmail.com> wrote:
>>
>> I agree with horns you'll usually get better coverage. I have done
>> this in the past with 5 speakers for a 30k sq ft warehouse very good
>> coverage. Using bogen horns. This was for a 300ft by 100ft warehouse.
>> Starting at 30 ft of the 300ft wall at the 50ft line off the 100ft
>> side I installed a horn every 60ft alternating facing one north and
>> the other south, which ended up 3 facing one way and 2 the other. You
>> can get double horn speakers which will face 2 sides. I wouldn't mount
>> them on the wall specifically not so low as fork lifts and what not
>> will damage them.
>>
>>
>> On Mon, Jul 12, 2010 at 2:17 PM, bruce bruce <bruceb444 at gmail.com> wrote:
>> > 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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