audio over mains supply?

jimbo1968 · 6th November 2007, 11:41 AM

Just thinking about how to set up wireless rear speakers.

Is there a simply/cheap way to send audio over the mains circuit.

I could then build 2 separate active rear speakers. I would want 2 channels, and each speaker to be fully independent. ( I have a mains socket in each of my rear corners)

Dare I say it, the quality does not need to be great, it's only movie sound effects after all.

richie00boy · 6th November 2007, 12:15 PM

You would only be able to send a mono signal. Also it's now illegal to knowingly superimpose signals or interference on the mains. Well maybe not illegal but not inline with CE regulations.

AndrewT · 6th November 2007, 12:25 PM

Or buy the two channels of wireless needed.
Try doing it with CAT5 in the wall = wired.

jimbo1968 · 6th November 2007, 12:27 PM

I could accept mono, and CE regs don't effect me, so I'm not put off yet.

On the CE thing, I thought you can buy LAN over mains set-ups.

jimbo1968 · 6th November 2007, 12:33 PM

Quote:

Originally posted by AndrewT
Or buy the two channels of wireless needed.

Could you expand on this? what are you suggesting I buy?

I suppose the cheapest solution I've got so far is to buy 2x 'video senders' at about £30 each.

jimbo1968 · 6th November 2007, 12:47 PM

Ok, so now i've found an FM transmitter for £5, so I just need 2x cheap FM receivers.

richie00boy · 6th November 2007, 02:09 PM

You are still going to need a mains lead to the the speakers if they are wireless. Why not just use thin figure-8 or flat cable and put it under the carpet?

jimbo1968 · 6th November 2007, 02:55 PM

That's what I've got at the moment, but new carpets are being fitted soon and I was thinking it would be nice to avoid having to install the wires under the carpet.

But it was a bad idea, especially to end up with an inferior and more complicated system.

jcx · 6th November 2007, 03:52 PM

Radio Shack Accurian amp - the receiver/25 W amp is still available at a few stores for $15

I don't know if the "HomePlug" transmitter can be found anywhere though

jimbo1968 · 6th November 2007, 06:59 PM

that's so cheap, but maybe it was a bit more expensive before the transmitters sold out

6th November 2007, 11:41 AM	#1
jimbo1968 diyAudio Member Join Date: Nov 2004 Location: UK, bristol	audio over mains supply? Just thinking about how to set up wireless rear speakers. Is there a simply/cheap way to send audio over the mains circuit. I could then build 2 separate active rear speakers. I would want 2 channels, and each speaker to be fully independent. ( I have a mains socket in each of my rear corners) Dare I say it, the quality does not need to be great, it's only movie sound effects after all.

6th November 2007, 12:15 PM	#2
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	You would only be able to send a mono signal. Also it's now illegal to knowingly superimpose signals or interference on the mains. Well maybe not illegal but not inline with CE regulations. __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

6th November 2007, 02:09 PM	#7
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	You are still going to need a mains lead to the the speakers if they are wireless. Why not just use thin figure-8 or flat cable and put it under the carpet? __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

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6th November 2007, 12:25 PM	#3
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Or buy the two channels of wireless needed. Try doing it with CAT5 in the wall = wired.

6th November 2007, 12:27 PM	#4
jimbo1968 diyAudio Member Join Date: Nov 2004 Location: UK, bristol	I could accept mono, and CE regs don't effect me, so I'm not put off yet. On the CE thing, I thought you can buy LAN over mains set-ups.

6th November 2007, 12:47 PM	#6
jimbo1968 diyAudio Member Join Date: Nov 2004 Location: UK, bristol	Ok, so now i've found an FM transmitter for £5, so I just need 2x cheap FM receivers.

6th November 2007, 02:55 PM	#8
jimbo1968 diyAudio Member Join Date: Nov 2004 Location: UK, bristol	That's what I've got at the moment, but new carpets are being fitted soon and I was thinking it would be nice to avoid having to install the wires under the carpet. But it was a bad idea, especially to end up with an inferior and more complicated system.

6th November 2007, 03:52 PM	#9
jcx diyAudio Member Join Date: Feb 2003 Location: ..	Radio Shack Accurian amp - the receiver/25 W amp is still available at a few stores for $15 I don't know if the "HomePlug" transmitter can be found anywhere though

6th November 2007, 06:59 PM	#10
jimbo1968 diyAudio Member Join Date: Nov 2004 Location: UK, bristol	that's so cheap, but maybe it was a bit more expensive before the transmitters sold out

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