RME Audio ADI-2 Pro SE User Manual page 94

Output Phones TRS
+20 dBu output level @ 32 Ohm equal 1.9 W (per channel)
Crosstalk Phones Balanced / Unbalanced
From top to bottom (all 32 Ohm load): TRS extension cord 3 meter (9.8 ft). TRS Phones Out 1/2
and 3/4. Phones Balanced mode using 2 x TRS Out or Pentaconn. No load: XLR Out 1/2.
User's Guide ADI-2/4 Pro SE - v 1.0
94