RightMark Audio Analyzer test report

Testing device スピーカー (USB2.0 High-Speed T
Sampling mode 24-bit, 192 kHz
Interface MME
Testing chain External loopback (line-out - line-in)
RMAA Version 6.2.3
   
   
20 Hz - 20 kHz filter ON
Normalize amplitude ON
Level change -7.5 dB / -7.5 dB
Mono mode OFF
Calibration singal, Hz 1000
Polarity correct/correct



Summary

Frequency response (from 40 Hz to 15 kHz), dB
+0.05, -0.59
Good
Noise level, dB (A)
-77.9
Average
Dynamic range, dB (A)
78.1
Average
THD, %
0.0069
Very good
THD + Noise, dB (A)
-74.7
Average
IMD + Noise, %
0.024
Good
Stereo crosstalk, dB
-76.7
Very good
IMD at 10 kHz, %
0.025
Good
General performance
 
Good



Frequency response

Spectrum graph

From 20 Hz to 20 kHz, dB
-2.06, +0.05
From 40 Hz to 15 kHz, dB
-0.59, +0.05



Noise level

Spectrum graph

 
Left
Right
RMS power, dB
-78.7
-77.9
RMS power (A-weighted), dB
-78.4
-77.4
Peak level, dB FS
-49.4
-48.7
DC offset, %
+0.0
-0.0



Dynamic range

Spectrum graph

 
Left
Right
Dynamic range, dB
+78.8
+78.0
Dynamic range (A-weighted), dB
+78.5
+77.6
DC offset, %
+0.00
+0.00



THD + Noise (at -3 dB FS)

Spectrum graph

 
Left
Right
THD, %
+0.0040
+0.0098
THD + Noise, %
+0.0192
+0.0214
THD + Noise (A-weighted), %
+0.0167
+0.0203



Intermodulation distortion

Spectrum graph

 
Left
Right
IMD + Noise, %
+0.0234
+0.0254
IMD + Noise (A-weighted), %
+0.0203
+0.0220



Stereo crosstalk

Spectrum graph

 
Left
Right
Crosstalk at 100 Hz, dB
-64
-63
Crosstalk at 1000 Hz, dB
-76
-75
Crosstalk at 10000 Hz, dB
-74
-74



IMD (swept tones)

Spectrum graph

 
Left
Right
IMD + Noise at 5000 Hz,
0.0248
0.0262
IMD + Noise at 10000 Hz,
0.0237
0.0258
IMD + Noise at 15000 Hz,
0.0245
0.0252