Topping DX1 Mini Stereo DAC Headphone Amplifier AK4493S 384kHz/32bit DSD256 280mW x2 Discrete LNRD HiFi Amp with 2 Gains Home Audio Silver

Topping DX1 Mini Stereo DAC Headphone Amplifier Combo - 280mW x2 Powerful Output Two-Stage GAIN Switch USB Chargable Discrete LNRD AK4493S XU208 384kHz/32bit Native DSD256 HiFi Home Audio (Sliver)

beyerdynamic DT 990 Pro 250 ohm Over-Ear Studio Headphones For Mixing, Mastering, and Editing