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Nursery and Lobby Speakers Live sound in Church Building
Robin Zenteto:
Hi, I am working on getting our new church building ready for the drywall stage. I need a speaker in the lobby and in the nursery. They need to have their own volume control.
First Question what would work best. The lobby has a 13' high ceiling and the nursery has an 11' ceiling. Should I do a wall speaker, ceiling speaker or corner mounted loud speaker. I am leaning towards the corner mounted loudspeaker only because in the future it will be replaced with a TV. Thinking of this one. https://www.bhphotovideo.com/c/product/1269316-REG/bosch_f_01u_283_976_lb1_cw06_d_corner_cabinet_loudspeaker.html
Next question. Right now I have cat6 running to those locations for future TVs. What wires/cables do I need to run to the speakers to get live sound from the sanctuary to the speakers from the soundboard.
Last question. They need to be able to adjust volume or mute the speakers in the lobby or nursery. I would like a nice in-wall volume control, like this one https://www.crutchfield.com/p_120VC700/Metra-ethereal-VC700.html?tp=2971 but I don't know what volume control to pick and what wires it needs.
Thanks for your help.
David Pedd:
Just 1 speaker in each location?
What amplifier are you using to drive these speakers?
Robin Zenteto:
--- Quote from: David Pedd on May 22, 2017, 07:50:25 PM ---Just 1 speaker in each location?
What amplifier are you using to drive these speakers?
--- End quote ---
Yes, just one speaker in each location. The lobby is pretty spacious about 18'x 60'. I hadn't given much thought to more than one speaker. I was just going to put one in by the double doors so the lobby could double as a "cry" room.
We are in a very tiny church at the moment and we have a Mackie MFXi board and a Crown xls2500 amp.
The board is a new purchase, but we will be upgrading other components as we are able in the future. But for the foreseeable future, that is what we will be using.
TJ (Tom) Cornish:
--- Quote from: Robin Zenteto on May 22, 2017, 10:02:04 AM ---Hi, I am working on getting our new church building ready for the drywall stage. I need a speaker in the lobby and in the nursery. They need to have their own volume control.
First Question what would work best. The lobby has a 13' high ceiling and the nursery has an 11' ceiling. Should I do a wall speaker, ceiling speaker or corner mounted loud speaker. I am leaning towards the corner mounted loudspeaker only because in the future it will be replaced with a TV. Thinking of this one. https://www.bhphotovideo.com/c/product/1269316-REG/bosch_f_01u_283_976_lb1_cw06_d_corner_cabinet_loudspeaker.html
Next question. Right now I have cat6 running to those locations for future TVs. What wires/cables do I need to run to the speakers to get live sound from the sanctuary to the speakers from the soundboard.
Last question. They need to be able to adjust volume or mute the speakers in the lobby or nursery. I would like a nice in-wall volume control, like this one https://www.crutchfield.com/p_120VC700/Metra-ethereal-VC700.html?tp=2971 but I don't know what volume control to pick and what wires it needs.
Thanks for your help.
--- End quote ---
Robin, typically a 70 volt distributed system is used in this scenario. The advantages are the ability to have multiple speakers fairly far away from the amp, each with their own volume control.
To do this, you need a dedicated amp channel (if you are using your current Crown XLS2500 for speakers inside your main meeting room you will need an additional amp for your outside speakers), 70v-capable speakers, and 70v attenuators.
I recommend JBL Control25AV speakers, which are very reasonably priced and perfect for your application.
For volume controls, there are a number of choices that are pretty much the same thing, depending on the power handling ability they have. Something like the Bogen AT10A is probably adequate for your nursery, but depending on how loud you are trying to run your lobby area, you may want a larger power capacity to avoid distortion. The Bogen AT35A would give you more margin, at the cost of a larger junction box.
Make sure you use wire appropriate for your building code. This may mean plenum-rated cable. You haven't mentioned distance between the amp and these speakers. If it's 150' or less, #14 wire is just fine.
Robin Zenteto:
--- Quote from: TJ (Tom) Cornish on May 23, 2017, 09:29:45 AM ---Robin, typically a 70 volt distributed system is used in this scenario. The advantages are the ability to have multiple speakers fairly far away from the amp, each with their own volume control.
To do this, you need a dedicated amp channel (if you are using your current Crown XLS2500 for speakers inside your main meeting room you will need an additional amp for your outside speakers), 70v-capable speakers, and 70v attenuators.
I recommend JBL Control25AV speakers, which are very reasonably priced and perfect for your application.
For volume controls, there are a number of choices that are pretty much the same thing, depending on the power handling ability they have. Something like the Bogen AT10A is probably adequate for your nursery, but depending on how loud you are trying to run your lobby area, you may want a larger power capacity to avoid distortion. The Bogen AT35A would give you more margin, at the cost of a larger junction box.
Make sure you use wire appropriate for your building code. This may mean plenum-rated cable. You haven't mentioned distance between the amp and these speakers. If it's 150' or less, #14 wire is just fine.
--- End quote ---
Okay, that is great information.
I can run a second amp off of the sound board correct????
Would that also give me the ability to mix the lobby different than the sanctuary????
Yes, I will need plenum-rated cable....the distance will not exceed 150'
Thanks for your help!
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