JCALLY JM6 Pro USB C Type-C to 3.5mm Dual DAC CX31993 MAX97220 Digital Audio Portable decoding amp HiFi DAC Mobile Headset Adapter (Silver Blue)

It provides crystal-clear sound with no coloration whatsoever, which is a huge plus. It has plenty of power to drive even the hardest-to-drive IEMs and 90% of headphones to at least 80dB (would not recommend listening to anything above 80dB). There is really no need to purchase a dedicated DAC and AMP. The only disadvantage is that the cable is not replaceable, so if it is ruined, you will need to buy a new one, but that is due to the small size, and nothing can be done.