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Author Topic: Wireless distribution of line level audio to remote speakers  (Read 4296 times)

Mal Brown

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Wireless distribution of line level audio to remote speakers
« on: October 21, 2017, 06:07:49 pm »

I'll be purchasing this off season, would like to be able to transmit 2 channels.  Clearly the new FCC Regs regarding the 600 MHz band are a consideration.  Any vendor I buy from will have to answer that...  Investment level is a factor but quality is as well...  What are the options and trade offs?
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Jerome Malsack

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Re: Wireless distribution of line level audio to remote speakers
« Reply #1 on: October 21, 2017, 06:28:58 pm »

Most people would work this as a pair of IEM receivers with a stereo Transmitter.  Then make you cable for the receivers to the powered speakers. 

You can pick the usual IEM providers, shure, sennheiser, audio technical, to name a few. 
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Mal Brown

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Re: Wireless distribution of line level audio to remote speakers
« Reply #2 on: October 21, 2017, 08:14:10 pm »

Are there good, better, best amongst the iem systems ?
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Dan Currie

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Re: Wireless distribution of line level audio to remote speakers
« Reply #3 on: October 22, 2017, 12:30:16 am »

How far are you looking at transmitting?  Mono? Stereo?  More info on what you are trying to do with details will help.


Are there good, better, best amongst the iem systems ?
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Mal Brown

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Re: Wireless distribution of line level audio to remote speakers
« Reply #4 on: October 22, 2017, 07:23:59 am »

 I'm guessing  150 to 200 feet ...  maybe 300 at the limit. 2 channels a spec' above.could be stereo, could be dual mono.  Most often dual Mono.
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Don T. Williams

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Re: Wireless distribution of line level audio to remote speakers
« Reply #5 on: October 22, 2017, 05:58:09 pm »

The Alto Stealth system is designed for this very purpose.  I've used it successfully to about 200' distance outdoors, but only a few times.  The Neutrik XIRIUM PRO system is also designed for this purpose and has a much longer range . . . and much higher price!
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Henry Cohen

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Re: Wireless distribution of line level audio to remote speakers
« Reply #6 on: October 22, 2017, 09:05:54 pm »

I'm guessing  150 to 200 feet ...  maybe 300 at the limit.

If your distance is only 300', and unless there are extenuating circumstances (going across a river or deep ravine, significant crowds with no safe cable path), you'll be far better off running two balanced pairs; it'll be less expensive and almost always far more reliable.

That said, if the feed is critical, using higher end equipment will provide the level of performance and reliability needed:
Lectrosonics IFBT-4 transmitters (in 400 series mode) along with any 400 series receivers; or
Shure PSM900 or 1000 in PtP mode and UHF-R receiver (or Axient set to UHF-R mode).
Use an appropriate antenna (omni or directional) for the TX, and passive high gain directionals for the RX, along with low loss coax. 
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Ray Aberle

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Re: Wireless distribution of line level audio to remote speakers
« Reply #7 on: October 23, 2017, 12:44:48 am »

Mal, when I get back from Wisconsin, let's meet up with gear and play around a bit- I'd be happy to go over various options with you!

-Ray
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Mal Brown

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Re: Wireless distribution of line level audio to remote speakers
« Reply #8 on: October 23, 2017, 01:34:24 pm »

Thanks Ray, You've been on my meeting list for a while.

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Mal Brown

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Re: Wireless distribution of line level audio to remote speakers
« Reply #9 on: October 23, 2017, 01:35:18 pm »

The Alto Stealth system is designed for this very purpose.  I've used it successfully to about 200' distance outdoors, but only a few times.  The Neutrik XIRIUM PRO system is also designed for this purpose and has a much longer range . . . and much higher price!

Appears to be in the FCC no-go band from what I can tell.
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Mal Brown

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Re: Wireless distribution of line level audio to remote speakers
« Reply #10 on: October 23, 2017, 01:40:48 pm »

If your distance is only 300', and unless there are extenuating circumstances (going across a river or deep ravine, significant crowds with no safe cable path), you'll be far better off running two balanced pairs; it'll be less expensive and almost always far more reliable.

That said, if the feed is critical, using higher end equipment will provide the level of performance and reliability needed:
Lectrosonics IFBT-4 transmitters (in 400 series mode) along with any 400 series receivers; or
Shure PSM900 or 1000 in PtP mode and UHF-R receiver (or Axient set to UHF-R mode).
Use an appropriate antenna (omni or directional) for the TX, and passive high gain directionals for the RX, along with low loss coax.

Thanks - I would vastly prefer investing in more cable ramp and running copper.  The 'need' however is customer driven.  I've tried pushing rope before...
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Don T. Williams

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Re: Wireless distribution of line level audio to remote speakers
« Reply #11 on: October 23, 2017, 03:51:36 pm »

Appears to be in the FCC no-go band from what I can tell.

The item is on the July 2017 dealer price list, for what that's worth.  I would assume (and I know what assumptions get you) that they are now in a approved band.  They did have 600MHz product.
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Steve Payne

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Re: Wireless distribution of line level audio to remote speakers
« Reply #12 on: October 25, 2017, 08:04:22 pm »

The Xirium Pro system is - like all things Neutrik - superb.


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Brian Ingwell

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Re: Wireless distribution of line level audio to remote speakers
« Reply #13 on: October 27, 2017, 01:53:18 pm »

Another higher-end option are the Airnetix units.

http://airnetix.com/arx910.html

We have three of the ARX910 units and have been really pleased with their performance.  They have some cool features like multi-hop capability, built in audio delay, they're weatherproof, you can hook up external antennas to them, remote monitoring via a PC, etc.

Plus Mike, the owner of the company is a super nice guy and very helpful.

Just another option.

Regards,
Brian
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Tim McCulloch

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Re: Wireless distribution of line level audio to remote speakers
« Reply #14 on: October 27, 2017, 10:49:33 pm »

Another higher-end option are the Airnetix units.

http://airnetix.com/arx910.html

We have three of the ARX910 units and have been really pleased with their performance.  They have some cool features like multi-hop capability, built in audio delay, they're weatherproof, you can hook up external antennas to them, remote monitoring via a PC, etc.

Plus Mike, the owner of the company is a super nice guy and very helpful.

Just another option.

Regards,
Brian

Before I do the Really Big Happy Dance on my desk, can you give a rough estimate of pricing?

I have a couple of things these would be perfect for.
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Don T. Williams

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Re: Wireless distribution of line level audio to remote speakers
« Reply #15 on: October 28, 2017, 01:13:38 pm »

Another higher-end option are the Airnetix units.

http://airnetix.com/arx910.html

We have three of the ARX910 units and have been really pleased with their performance.  They have some cool features like multi-hop capability, built in audio delay, they're weatherproof, you can hook up external antennas to them, remote monitoring via a PC, etc.

Plus Mike, the owner of the company is a super nice guy and very helpful.

Just another option.

Regards,
Brian

Brian, thanks for this info.  This is a product I was unaware of and looks very interesting.
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Mal Brown

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Re: Wireless distribution of line level audio to remote speakers
« Reply #16 on: October 28, 2017, 05:29:50 pm »

I looked at these a year or so back and concluded that while amazing I didn’t see the ROI in my market.  I do love it out here in the sticks but there are economic realities to be faced...
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Brian Ingwell

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Re: Wireless distribution of line level audio to remote speakers
« Reply #17 on: October 29, 2017, 10:27:07 am »

Before I do the Really Big Happy Dance on my desk, can you give a rough estimate of pricing?

I have a couple of things these would be perfect for.

Tim,

MAP on a ‘starter kit’ which includes three ‘nodes’ that can be used as either transmitter, receiver or both (in the case of hopping), mounts plus a breakout box that allows power, audio and computer control to be sent to the transmitter over shielded cat 5 (handy if you’re putting the transmitter high up on a stage or truss) is $3,200.  Not cheap, but not much more than a high end IEM solution with that flexibility and this is purpose built.

Brian
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Dave Garoutte

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Re: Wireless distribution of line level audio to remote speakers
« Reply #18 on: October 31, 2017, 12:21:19 pm »

I have used a Senny G3 IEM transmitter with paddles, to two remotes with regular Mic receivers, across a high school quad 200-300 ft. 
Worked flawlessly.(In fact one vendor kept unplugging the speaker because he set up too close.)
The speakers were up 8-10 ft, so there was direct line of sight.
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Mike Caldwell

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Re: Wireless distribution of line level audio to remote speakers
« Reply #19 on: October 31, 2017, 10:16:05 pm »

I just used a Sennheiser G2 IEM transmitter to a G2 receiver for a right at 1600 foot wireless link. This was outdoors, paddle antennas up high at both ends, line of sight. The RF meter on the receiver was hovering around 25 to 30.

Rob Spence

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Re: Wireless distribution of line level audio to remote speakers
« Reply #20 on: October 31, 2017, 11:38:17 pm »

I just used a Sennheiser G2 IEM transmitter to a G2 receiver for a right at 1600 foot wireless link. This was outdoors, paddle antennas up high at both ends, line of sight. The RF meter on the receiver was hovering around 25 to 30.

+1 me too. Bought em on eBay.


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Re: Wireless distribution of line level audio to remote speakers
« Reply #20 on: October 31, 2017, 11:38:17 pm »


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