My father is a classical audiophile for many years. So far he is so resistant to CAS. He has his very hi-end amp & speakers. I’d like to introduce him CAS. So I need to buy a DAC for him. Is M2Tech Young suitable for him in this case? Or any other idea? Price doesn’t matter. But I risk that if I buy an expensive one, and he still so resistant on lossless file. If I buy the M2Tech DAC for him, do I still need to buy a power supply for the DAC? He likes listening classical musics and he uses windows system. Thank you very much.