Desk: Headphones: (1) Audeze LCD-X, (2) Audio-Technica ATH-ADX5000, DAC: RME ADI-2 FS (main one) + Pro-Ject Pre Box S2 Digital (MQA support), AMP: HeadAmp Gilmore Lite Mk2 Class-A Headphone Amplifier, Power: Pro-Ject Power Box S2 (external 5V/1A power supply) + Audioquest Jitterbug (USB filter)
Mobile: Headphones: Custom Art Harmony 8.2, DAC+AMP: DragonFly Cobalt (MQA support), Player: USB Audio Player Pro
Source: TIDAL HiFi streaming