Asus Audio Card Xonar D2 User Manual page 74

Parameter
RMS power, dB:
RMS power (A-weighted), dB:
Peak level, dB FS:
DC offset, %:
68
Noise level
Left
-115.5
-116.7
-92.9
-0.00
Dynamic range
ASUS Xonar D2
Right
-115.2
-116.5
-92.4
-0.00