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)
87.1
Good
THD, %
0.021
Good
THD + Noise, dB (A)
-70.8
Average
IMD + Noise, %
0.026
Good
Stereo crosstalk, dB
-83.7
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
-1.68, +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
-85.2
-86.0
RMS power (A-weighted), dB
-86.8
-87.1
Peak level, dB FS
-71.9
-71.8
DC offset, %
+0.3
+3.9



Dynamic range

Spectrum graph

 
Left
Right
Dynamic range, dB
+85.6
+86.0
Dynamic range (A-weighted), dB
+87.0
+87.2
DC offset, %
+0.25
+3.93



THD + Noise (at -3 dB FS)

Spectrum graph

 
Left
Right
THD, %
0.02007
0.02175
THD + Noise, %
0.02298
0.02442
THD + Noise (A-weighted), %
0.02778
0.02983



Intermodulation distortion

Spectrum graph

 
Left
Right
IMD + Noise, %
0.02458
0.02685
IMD + Noise (A-weighted), %
0.01751
0.01851



Stereo crosstalk

Spectrum graph

 
Left
Right
Crosstalk at 100 Hz, dB
-85
-84
Crosstalk at 1000 Hz, dB
-83
-83
Crosstalk at 10000 Hz, dB
-82
-84



IMD (swept tones)

Spectrum graph

 
Left
Right
IMD + Noise at 5000 Hz,
0.02792
0.03009
IMD + Noise at 10000 Hz,
0.02170
0.02239
IMD + Noise at 15000 Hz,
0.02071
0.02114