"Andre Jute" wrote in message
ups.com...
A STAX 252A amp, same as the 2050 sold in anglo markets, has parallel-
connected input ports, called "through ports". With both sets of
inputs connected, one to a CD player, one to a computer output, the
sound is muted, dulled. With the computer leads pulled, the sound is
louder and brighter.

Is this report what we would expect?

**Possibly. When connecting the two sources together, the results can be
expected to be unpredictable.

What is the key mechanism at work
here?

**A stupid operator.

Suggest some ballpark values.

**I would expect that the output impedances of the two sources would be
between 100 Ohms and 1,000 Ohms. You haven't listed any brand/model numbers,
nor the specs, so speculation is the order of the day.


Newbies especially welcome.

**Only a rank newbie would connect two sources together and expect anything
but disaster.

Trevor Wilson