4 channel of audio + single wire

[bilgekaan]

Hello All,
I want to carry 4 channels of audio using single wire up to 40 meters.how can i achieve this? any suggestion is wellcome
br
Bilgekaan

[Cal Weldon]

Line level or speaker level?

[bilgekaan]

I am newbei to audio subject , I need some explanations.


Line level : analog or digital , must be processed ( convert to sound ) before connecting to speaker.

Spekar level : Can be directly connceted to speaker.

If my presumptions above are correct , line level is OK.But also I want know about speaker level solution.

Best regards
BýlgeKaan

[Pano]

I would think it would have to be some kind of RF modulation on single wire (with ground).

Would be line level. Digital and analog versions exist, take your pick.

[bilgekaan]

Digital one I prefer . But what are advantages and disadvantages when digital and analog systes are compared?

I search internet and encountered system called digital snake.Seems to complicated.

[AndrewT]

Hi,
if you want more than one signal to pass down the same wire (well two wires for flow and return), then you must multiplex them in some way and de-multiplex again at the receive end.

RF modulation has been mentioned either AM and/or FM for analogue.
Or go digital.
Both methods will be beyond most contributors on this forum.
A pair a wires for each signal will be MUCH easier and MUCH cheaper.

[Pano]

Originally posted by AndrewT
A pair a wires for each signal will be MUCH easier and MUCH cheaper.

Amen! Unless you have to go a very long way.