wrote:

I have on the back of my amp typical standard RCA input connections
such as Aux, Tape, CD, Phono, etc.

I also have a PC computer, and I like listening to MP3s which I listen
to by using a lead going from my PC soundcard going into the back of
the amp - it's currently plugged in to the Aux connection.

But does it make any difference if I plug the PC lead in to any of the
other amp connections, like Tape, or Phono, or CD, etc?

Are these amp input connections the same, or do they differ subtely
perhaps?

Another issue I've thought about is - where do I plug my DVD audio into
my other amp used for the TV - this amp's (it's not an AV receiver btw)
got no specific DVD input, but it has got an Aux input, as well as Tape
and Mini-disc. Does any one know which would be the most appropriate
input connection to plug a DVD in to?

Avoid the phono input.

The tape input is generally the best if the amp has a source/tape
monitor switch.
This is because it generally goes straight to the volume control and
you don't risk overloading the input stage.

You may need a 10dB attenuator for the DVD if you plug it into the aux
socket. You would generally want the level to match that of a CD player
plugged into the CD input.

--
Eiron

I have no spirit to play with you; your dearth of judgment renders you
tedious - Ben Jonson.