RightMark Audio Analyzer test report

Testing device iPhone 7+Fiio_48kHz
Sampling mode 16-bit, 48 kHz
Interface  
Testing chain External loopback (line-out - line-in)
RMAA Version 6.4.5
   
   
20 Hz - 20 kHz filter ON
Normalize amplitude ON
Level change 1.5 dB / 1.5 dB
Mono mode OFF
Calibration singal, Hz 1000
Polarity correct/correct



Summary

Frequency response (from 40 Hz to 15 kHz), dB
+0.03, -0.11
Excellent
Noise level, dB (A)
-83.8
Good
Dynamic range, dB (A)
83.8
Good
THD, %
0.00232
Excellent
THD + Noise, dB (A)
-77.5
Average
IMD + Noise, %
0.019
Very good
Stereo crosstalk, dB
-70.3
Good
IMD at 10 kHz, %
0.018
Very good
General performance
 
Very good



Frequency response

Spectrum graph

 
Left
Right
From 20 Hz to 20 kHz, dB
-8.49, +0.03
-8.49, +0.03
From 40 Hz to 15 kHz, dB
-0.10, +0.03
-0.11, +0.03



Noise level

Spectrum graph

 
Left
Right
RMS power, dB
-82.6
-82.5
RMS power (A-weighted), dB
-83.9
-83.7
Peak level, dB FS
-68.7
-69.4
DC offset, %
-0.0
-0.0



Dynamic range

Spectrum graph

 
Left
Right
Dynamic range, dB
+82.7
+82.4
Dynamic range (A-weighted), dB
+83.9
+83.7
DC offset, %
+0.00
+0.00



THD + Noise (at -3 dB FS)

Spectrum graph

 
Left
Right
THD, %
0.00213
0.00251
THD + Noise, %
0.01496
0.01526
THD + Noise (A-weighted), %
0.01316
0.01360



Intermodulation distortion

Spectrum graph

 
Left
Right
IMD + Noise, %
0.01846
0.01882
IMD + Noise (A-weighted), %
0.01610
0.01660



Stereo crosstalk

Spectrum graph

 
Left
Right
Crosstalk at 100 Hz, dB
-68
-69
Crosstalk at 1000 Hz, dB
-69
-70
Crosstalk at 10000 Hz, dB
-69
-69



IMD (swept tones)

Spectrum graph

 
Left
Right
IMD + Noise at 5000 Hz,
0.01802
0.01748
IMD + Noise at 10000 Hz,
0.01788
0.01844
IMD + Noise at 15000 Hz,
0.01773
0.01805