Re: [asterisk-users] How to calculate number of speakers needed for PAGING and INTERCOM coverage area?
Yes, thanks. I think lots of manufacturers just boost the number of speakers really needed but again this really depends on the environment noise level. Regards, Bruce On Wed, Jul 14, 2010 at 11:50 PM, C F shma...@gmail.com wrote: I'm happy to hear it worked out so well with so little. :) On Wed, Jul 14, 2010 at 12:39 AM, bruce bruce bruceb...@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, 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 shma...@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 bruceb...@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 shma...@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 bruceb...@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 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com-- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com-- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To
Re: [asterisk-users] How to calculate number of speakers needed for PAGING and INTERCOM coverage area?
I'm happy to hear it worked out so well with so little. :) On Wed, Jul 14, 2010 at 12:39 AM, bruce bruce bruceb...@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, 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 shma...@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 bruceb...@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 shma...@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 bruceb...@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 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello
Re: [asterisk-users] How to calculate number of speakers needed for PAGING and INTERCOM coverage area?
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 bruceb...@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 shma...@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 bruceb...@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 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] How to calculate number of speakers needed for PAGING and INTERCOM coverage area?
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, 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 shma...@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 bruceb...@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 shma...@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 bruceb...@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 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] How to calculate number of speakers needed for PAGING and INTERCOM coverage area?
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 shma...@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 bruceb...@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 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] How to calculate number of speakers needed for PAGING and INTERCOM coverage area?
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 bruceb...@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 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] How to calculate number of speakers needed for PAGING and INTERCOM coverage area?
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 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] How to calculate number of speakers needed for PAGING and INTERCOM coverage area?
bruce bruce ha scritto: 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. Hu interesting... i never checked this kind of product. CyberData has calculator only for the 8W model, but... every speaker they sell is 8w and the calculator say 69 speakers. You can attach 2 speakers to one amplifier in parallel (they say this also), this is the maximum as the amplifier cannot reach 32W (4 speakers), but you can try to use 4 speakers (2 in parallel + 2 in parallel) with a little less than maximum 8w on each speaker. I think a reasonable number of speakers may be less than half, but you must check wath is in the area, also remember if this is a warehouse to place the speakers where a person can be, not goods. :-) For a so big installation think to use a voip interface and professional product with low voltage line speakers, i think is less expensive. Bye. attachment: massimo.vcf signature.asc Description: OpenPGP digital signature -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] How to calculate number of speakers needed for PAGING and INTERCOM coverage area?
Thanks fro the input. The area is a 4 square feet. So, you are saying that if I use four speakers then they would not be as loud as needed? Thanks again 2010/7/9 Massimo Nuvoli mass...@archivio.it bruce bruce ha scritto: 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. Hu interesting... i never checked this kind of product. CyberData has calculator only for the 8W model, but... every speaker they sell is 8w and the calculator say 69 speakers. You can attach 2 speakers to one amplifier in parallel (they say this also), this is the maximum as the amplifier cannot reach 32W (4 speakers), but you can try to use 4 speakers (2 in parallel + 2 in parallel) with a little less than maximum 8w on each speaker. I think a reasonable number of speakers may be less than half, but you must check wath is in the area, also remember if this is a warehouse to place the speakers where a person can be, not goods. :-) For a so big installation think to use a voip interface and professional product with low voltage line speakers, i think is less expensive. Bye. -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
