Wireless Feed to Nursery?

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Peter Etheredge

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Jan 11, 2011
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St. Charles, IL
tnprod.com
A church we've done some work for in the past has asked would like a speaker installed in their nursery.... which happens to be located in another portion of the building that has open ceilings on both floors and is made out of poured concrete. This means that what at first seem to be a small job is rather more expensive once the many hours of labor to drill and cut through all that concrete are added up. So that brings me to looking at what some other options might be, and of course wireless comes right to mind.

Does anyone have any experience with something like this:

http://www.williamssound.com/productdetail.aspx?product_id=370

Their current ALS system is an older Telex Soundmate deal so I'm not sure if this would even work. I'm also not hugely keen on the fact that it requires the user to make adjustments on the speaker itself, as opposed to a simple wall mount volume control as the case would be with a standard 70v system. I'd also be concerned about the audio quality and dropouts as I'm not sure how well these systems transmit.

Are there any other wireless systems that would work in this way but with a wall mount volume control? Does the Williams Sound unit even work? Experiences? If it's not do-able it's not do-able but I figured it was worth asking.

Thanks!
 
Re: Wireless Feed to Nursery?

as long as the frequencies match up you should be fine.. most ALS systems (especially the older ones) don't use fancy companders like wireless mics do, so it's just a raw transmission with nothing proprietary.
it's just a shame that it doesn't have a remote volume terminal option like a few powered speakers do these days. I'm sure it would cost more, but you could couple a K8 with a Telex (or other) receiver, and then use the remote volume terminal on the K8 to a pot on a wall plate.
might have to find a way to permanently power the receiver, or you'll have to have someone turn it on and off for every service.

Jason
 
Re: Wireless Feed to Nursery?

Odds are a low power RF transmission, even in the low VHF band, will not propagate through the numerous concrete (with rebar no doubt) walls. The most obvious test would be to take their current ALS system and see how far that gets you. You should re-orient the transmitter or antenna to a more optimum location for the test. If you get less than 80% of the way, there's no cost effective license-free RF solution.

As to other options, is there any copper that's common to the two locations; telephone wires, networking, coaxial TV? Almost any type of wiring can be used for analog signal transport with appropriate baluns or active interfaces. There's also audio over power line interfaces so long as the route from point A to B is on the same phase/leg (and not going through any transformers).
 
Re: Wireless Feed to Nursery?

Henry Cohen said:
As to other options, is there any copper that's common to the two locations; telephone wires, networking, coaxial TV? Almost any type of wiring can be used for analog signal transport with appropriate baluns or active interfaces. There's also audio over power line interfaces so long as the route from point A to B is on the same phase/leg (and not going through any transformers).
Click to expand...

Not to mention if there's network connectivity (even if it isn't a direct wire pull), there are a large number of audio-over-Ethernet solutions (some very cost-effective, since you probably don't care about a couple second latency).
 
Re: Wireless Feed to Nursery?

Rob Timmerman said:
there are a large number of audio-over-Ethernet solutions (some very cost-effective, since you probably don't care about a couple second latency).
Click to expand...

Even with that, you could go audio over Ethernet, and then Ethernet over power

Mixer-->audio over ethernet box --> ethernet over power box --> (travels the signal over the power lines) --> ethernet over power receiver, into --> audio over ethernet receiver box--> wall mount volume adjuster --> speaker.

(audio over ethernet)
http://www.ecoustics.com/electronics/products/new/554416.html
this specific box would also allow power

(Power Over Ethernet)
there are multiple solutions to this on amazon.com
 
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