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 -0.2 dB / -0.1 dB
Mono mode OFF
Calibration singal, Hz 1000
Polarity correct/correct



Summary

Frequency response (from 40 Hz to 15 kHz), dB
+1.02, -7.27
Poor
Noise level, dB (A)
-87.0
Good
Dynamic range, dB (A)
87.2
Good
THD, %
0.026
Good
THD + Noise, dB (A)
-69.0
Average
IMD + Noise, %
0.261
Average
Stereo crosstalk, dB
-83.3
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
-12.85, +0.90
-12.83, +1.02
From 40 Hz to 15 kHz, dB
-7.29, +0.90
-7.27, +1.02



Noise level

Spectrum graph

 
Left
Right
RMS power, dB
-85.1
-86.0
RMS power (A-weighted), dB
-86.8
-87.2
Peak level, dB FS
-71.1
-72.8
DC offset, %
+0.3
+3.9



Dynamic range

Spectrum graph

 
Left
Right
Dynamic range, dB
+85.6
+86.2
Dynamic range (A-weighted), dB
+87.0
+87.3
DC offset, %
+0.26
+3.92



THD + Noise (at -3 dB FS)

Spectrum graph

 
Left
Right
THD, %
0.02521
0.02699
THD + Noise, %
0.02759
0.02918
THD + Noise (A-weighted), %
0.03423
0.03642



Intermodulation distortion

Spectrum graph

 
Left
Right
IMD + Noise, %
0.25773
0.26524
IMD + Noise (A-weighted), %
0.08579
0.08686



Stereo crosstalk

Spectrum graph

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



IMD (swept tones)

Spectrum graph

 
Left
Right
IMD + Noise at 5000 Hz,
0.02854
0.03047
IMD + Noise at 10000 Hz,
0.02260
0.02225
IMD + Noise at 15000 Hz,
0.02071
0.02225