[lehuy]

As the title, will it play at the same time?
//i dont have any speaker so i cant test it myself

 

[PurpleAngel]

What is the make and model of the amplifier?

 

[lehuy]

The magni 2

 

[PurpleAngel]

Magni 2 Uber, the one that comes with the separate (RCA) line-output?
When the headphones are plugged in, the RCA outputs stop sending a signal.
When the headphone are unplugged from the Magni, the RCA line-outputs become active and send out a signal.

 

[lehuy]

  Magni 2 Uber, the one that comes with the separate (RCA) line-output?
When the headphones are plugged in, the RCA outputs stop sending a signal.
When the headphone are unplugged from the Magni, the RCA line-outputs become active and send out a signal.

so if i plug in both rca and 3.5mm, it will prefer the 3.5mm?

 

[PurpleAngel]

  so if i plug in both rca and 3.5mm, it will prefer the 3.5mm?

 
Yes, it should give priority to the 3.5mm headphone jack, over the RCA line-output.