RightMark Audio Analyzer test report

Testing device [MME] Speakers (USB Sound Device)
Sampling mode 16-bit, 48 kHz
Interface MME
Testing chain External loopback (line-out - line-in)
RMAA Version 6.4.5
   
   
20 Hz - 20 kHz filter ON
Normalize amplitude ON
Level change -0.1 dB / 0.0 dB
Mono mode OFF
Calibration singal, Hz 1000
Polarity correct/correct



Summary

Frequency response (from 40 Hz to 15 kHz), dB
+0.37, -0.19
Good
Noise level, dB (A)
-86.9
Good
Dynamic range, dB (A)
87.2
Good
THD, %
0.021
Good
THD + Noise, dB (A)
-70.7
Average
IMD + Noise, %
0.025
Good
Stereo crosstalk, dB
-84.6
Very good
IMD at 10 kHz, %
0.024
Good
General performance
 
Good



Frequency response

Spectrum graph

 
Left
Right
From 20 Hz to 20 kHz, dB
-1.67, +0.25
-1.55, +0.37
From 40 Hz to 15 kHz, dB
-0.31, +0.25
-0.19, +0.37



Noise level

Spectrum graph

 
Left
Right
RMS power, dB
-85.5
-85.9
RMS power (A-weighted), dB
-86.8
-87.0
Peak level, dB FS
-70.9
-72.9
DC offset, %
+0.2
+3.9



Dynamic range

Spectrum graph

 
Left
Right
Dynamic range, dB
+85.6
+86.1
Dynamic range (A-weighted), dB
+87.1
+87.3
DC offset, %
+0.22
+3.90



THD + Noise (at -3 dB FS)

Spectrum graph

 
Left
Right
THD, %
0.02044
0.02201
THD + Noise, %
0.02336
0.02464
THD + Noise (A-weighted), %
0.02827
0.03015



Intermodulation distortion

Spectrum graph

 
Left
Right
IMD + Noise, %
0.02335
0.02594
IMD + Noise (A-weighted), %
0.01708
0.01806



Stereo crosstalk

Spectrum graph

 
Left
Right
Crosstalk at 100 Hz, dB
-83
-83
Crosstalk at 1000 Hz, dB
-83
-84
Crosstalk at 10000 Hz, dB
-82
-84



IMD (swept tones)

Spectrum graph

 
Left
Right
IMD + Noise at 5000 Hz,
0.02833
0.03032
IMD + Noise at 10000 Hz,
0.02104
0.02288
IMD + Noise at 15000 Hz,
0.02072
0.02125