What is "Residual Noise"?

[Deleted member 89059]

I've been reading the Luxman L-3 service manual and came across this line:

Residual noise: No more than 1 mV

Is this what we call DC-offset?

Thanks all.

 

[sax6]

I've been reading the Luxman L-3 service manual and came across this line:

Residual noise: No more than 1 mV

Is this what we call DC-offset?

Thanks all.

Don't know much about it but, just wanted to say hello from Sherbrooke !

 

[dumptruck]

It's the amplitude of the noise that the amplifier makes all by itself.

 

[for_p1]

I've been reading the Luxman L-3 service manual and came across this line:

Residual noise: No more than 1 mV

Is this what we call DC-offset?

Thanks all.

Measured output AC noise signal when inputs are shorted.

 

[Deleted member 89059]

Don't know much about it but, just wanted to say hello from Sherbrooke !

Oh hi! So nice to see a vintage audio lover around here.

 

[Deleted member 89059]

Measured output AC noise signal when inputs are shorted.

So how do I test this myself? Do I short out the currently-used inputs and measure the speaker output, or I can simply defeat the input selector so no inputs are selected?

 

[for_p1]

So how do I test this myself? Do I short out the currently-used inputs and measure the speaker output, or I can simply defeat the input selector so no inputs are selected?

Do you really need to? Usually it is done using spectrum analyzer. If you do not hear significant hiss, no reasons to bother.