Simple question - what does "buffered signal" mean?

[andrewrx7]

I hope this isn't too simpe a question, but when reading through my amp instruction manuals ( ) there is mention of "buffered" signals for tuner sends.

1) What is a buffered signal?

2) I would assume the signal to a tuner is pre-eq etc?

Thanks
Andrew

[johnnylager]

[quote name='andrewrx7' post='404195' date='Feb 9 2009, 12:25 PM']I hope this isn't too simpe a question, but when reading through my amp instruction manuals ( ) there is mention of "buffered" signals for tuner sends.

1) What is a buffered signal?

2) I would assume the signal to a tuner is pre-eq etc?

Thanks
Andrew[/quote]
1> [url="http://en.wikipedia.org/wiki/Buffer_amplifier#Voltage_buffer_examples"]This[/url]

2> Generally it is directly from the input jack

This may all be wrong, but I thought I'd start you off.

Edited February 9, 2009 by johnnylager

[bremen]

[quote name='johnnylager' post='404205' date='Feb 9 2009, 12:34 PM']1> [url="http://en.wikipedia.org/wiki/Buffer_amplifier#Voltage_buffer_examples"]This[/url]

2> Generally it is directly from the input jack

This may all be wrong, but I thought I'd start you off.[/quote]


Nearly right, but in this context it means that it isn't connected directly to the input jack, but is isolated (buffered) so that if the tuner output is shorted or loaded it will have no effect on the main signal.

So functionally it's connected to the input jack, ie pre-eq, but connecting a tuner with a low input impedance won't harm the signal.

[andrewrx7]

Cheers fellas!