Less Opinion

I have just purchased but not yet received a Asus xonar DGX sound board. The Op amp on the board is attached to the PCB by a socket that allows you to fine tune to your taste the the op amps by simply unplugging and plugging in different amp of your choice. Being this is a very popular board I thought some of you might have experience with it. My priority's are with reproduction of 2 channel stereo music and I understand the card is more setup for gaming out of the box. If you are familiar with the card and my 2 channel needs what are some recommended amps that are used to dedicate this card more toward the audio music as apposed to the gaming setup, and what are the attributes associated with the different op amps. Thanks, David