I am interested in purchasing a DAC/Headphone Amp under $1000. I am considering Pro-Ject 2s or the SMSL M500. They are MQA compatible. Not sure I will use MQA but thought it might good to have this option.When reading reviews from Amazon and Crutchfield it appears that the Pro-Ject 2s has quality issues. Have not been able to find any user comments/reviews on the SMSL M500. Has anyone compare these to units and determined the best in sound and quality? Any other recommendations for DAC/Headphone Amp under $1,000?Thank your for considering to help me.Greg