RightMark Audio Analyzer test report

Testing device iPhone 7+foobar2000_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, -0.10
Excellent
Noise level, dB (A)
-83.8
Good
Dynamic range, dB (A)
83.8
Good
THD, %
0.00241
Excellent
THD + Noise, dB (A)
-77.5
Average
IMD + Noise, %
0.019
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
-8.49, +0.03
-8.49, +0.03
From 40 Hz to 15 kHz, dB
-0.10, +0.03
-0.10, +0.03



Noise level

Spectrum graph

 
Left
Right
RMS power, dB
-82.7
-82.5
RMS power (A-weighted), dB
-83.9
-83.7
Peak level, dB FS
-68.4
-68.2
DC offset, %
-0.0
-0.0



Dynamic range

Spectrum graph

 
Left
Right
Dynamic range, dB
+82.3
+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, %
0.00238
0.00244
THD + Noise, %
0.01556
0.01531
THD + Noise (A-weighted), %
0.01319
0.01359



Intermodulation distortion

Spectrum graph

 
Left
Right
IMD + Noise, %
0.01874
0.01881
IMD + Noise (A-weighted), %
0.01641
0.01648



Stereo crosstalk

Spectrum graph

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



IMD (swept tones)

Spectrum graph

 
Left
Right
IMD + Noise at 5000 Hz,
0.01770
0.01828
IMD + Noise at 10000 Hz,
0.01833
0.01857
IMD + Noise at 15000 Hz,
0.01805
0.01877