On Wed, 07 Nov 2007 13:54:31 -0800, Andre Jute
wrote:

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.


It sounds as if it doesn't have parallal input ports at all (which
would be most unusual). It has an input port and a through port,
designed to link to a secong amplifier.