Cita Iniciado por newbi07 Ver mensaje
... si no puedo usar la salida balanceada, baja la potencia de salida para los auriculares bastante de 280mv+280mv a 80mv+80mv.

No se si es suficiente para los Beyerdinamic de 250ohm, quizas deba repensar lo de usar el movil y tener el DAC extra como decis los dos compis.... hmmmm S2
Esos auriculares son difíciles de mover:

The DT990 is also extremely insensitive:



You better have a very high performance headphone amplifier that can drive its high impedance and provide the required power:



Notice how 250 ohm is the minimum impedance. Close to tuning frequency of the headphone, it shoots up to 350 ohm so your headphone amp needs to also have a very low output impedance as to not impact the frequency response of this headphone.