RightMark Audio Analyzer test report

Testing device iPhone 7+NePLAYER_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 1.6 dB / 1.6 dB
Mono mode OFF
Calibration singal, Hz 1000
Polarity correct/correct



Summary

Frequency response (from 40 Hz to 15 kHz), dB
+0.02, -0.06
Excellent
Noise level, dB (A)
-83.9
Good
Dynamic range, dB (A)
83.9
Good
THD, %
0.00228
Excellent
THD + Noise, dB (A)
-77.6
Average
IMD + Noise, %
0.018
Very good
Stereo crosstalk, dB
-70.4
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
-0.17, +0.02
-0.17, +0.02
From 40 Hz to 15 kHz, dB
-0.05, +0.02
-0.06, +0.02



Noise level

Spectrum graph

 
Left
Right
RMS power, dB
-82.8
-82.7
RMS power (A-weighted), dB
-84.0
-83.8
Peak level, dB FS
-68.9
-68.2
DC offset, %
-0.0
-0.0



Dynamic range

Spectrum graph

 
Left
Right
Dynamic range, dB
+82.7
+82.5
Dynamic range (A-weighted), dB
+83.9
+83.9
DC offset, %
-0.00
+0.00



THD + Noise (at -3 dB FS)

Spectrum graph

 
Left
Right
THD, %
0.00218
0.00239
THD + Noise, %
0.01490
0.01501
THD + Noise (A-weighted), %
0.01308
0.01332



Intermodulation distortion

Spectrum graph

 
Left
Right
IMD + Noise, %
0.01824
0.01850
IMD + Noise (A-weighted), %
0.01585
0.01603



Stereo crosstalk

Spectrum graph

 
Left
Right
Crosstalk at 100 Hz, dB
-69
-71
Crosstalk at 1000 Hz, dB
-69
-69
Crosstalk at 10000 Hz, dB
-69
-69



IMD (swept tones)

Spectrum graph

 
Left
Right
IMD + Noise at 5000 Hz,
0.01762
0.01766
IMD + Noise at 10000 Hz,
0.01731
0.01740
IMD + Noise at 15000 Hz,
0.01760
0.01768