doubt with audio transformer

[Bernardo]

Sorry for the question, it may be silly, but when I pass a stereo signal through a balanced cable through an audio transformer, it sounds out of phase on the secondary of the transformer, is this normal?
Is the signal unbalanced? Sounds like there are missing file elements played.
thank you so much

 

[radardoug]

A transformer is only for one channel, so how have you got it connected? If you are connecting one side to + and centretap, and the other side to - and centretap, then you are combining them with a phase reversal on one channel.

 

[Bernardo]

A single balanced channel would be connected to the transformer input: pin 1 "+", pin 3 "-", transformer output pin 4 "+", pin 6 "-". I don't quite understand this about inductance. What connects on the "2 and 5" ground?
very grateful for your answers.

 

[warpie]

I'm not sure what you mean here.

when I pass a stereo signal through a balanced cable

Do you mean a balanced signal? Stereo and balanced is not the same thing.

In your picture you can connect only one channel (balanced or unbalanced) so a mono channel. The centertaps (2,5) can be left floating, unless you want to change the impedance ratio. You do not connect them to the ground.

So, if you have a balanced signal, connect (+) to 1 and (-) to 2. That's usualy Pin2 (+) and Pin3(-) on an XLR cable.
If you have an unbalanced signal, connect (+) to 1 and Gnd to (2).

Hope this makes some sense now.

 

[Bernardo]

perfect explanations, thank you both for taking the trouble and time to teach me