RightMark Audio Analyzer test report

Testing device Zhaolu D1.3 amp 300 ohm
Sampling mode 24-bit, 96 kHz
Interface  
Testing chain External loopback (line-out - line-in)
RMAA Version 6.2.3
   
   
20 Hz - 20 kHz filter ON
Normalize amplitude ON
Level change -0.0 dB / -0.0 dB
Mono mode OFF
Calibration singal, Hz 1000
Polarity correct/correct



Summary

Frequency response (from 40 Hz to 15 kHz), dB
+0.02, -0.17
Very good
Noise level, dB (A)
-99.6
Excellent
Dynamic range, dB (A)
99.9
Excellent
THD, %
0.0006
Excellent
THD + Noise, dB (A)
-93.1
Very good
IMD + Noise, %
0.0034
Excellent
Stereo crosstalk, dB
-82.9
Very good
IMD at 10 kHz, %
0.0024
Excellent
General performance
 
Very good



Frequency response

Spectrum graph

From 20 Hz to 20 kHz, dB
-0.34, +0.02
From 40 Hz to 15 kHz, dB
-0.17, +0.02



Noise level

Spectrum graph

 
Left
Right
RMS power, dB
-97.8
-96.8
RMS power (A-weighted), dB
-99.9
-99.4
Peak level, dB FS
-75.5
-74.0
DC offset, %
-0.0
-0.0



Dynamic range

Spectrum graph

 
Left
Right
Dynamic range, dB
+97.9
+97.1
Dynamic range (A-weighted), dB
+100.1
+99.7
DC offset, %
-0.00
-0.00



THD + Noise (at -3 dB FS)

Spectrum graph

 
Left
Right
THD, %
+0.0006
+0.0007
THD + Noise, %
+0.0026
+0.0029
THD + Noise (A-weighted), %
+0.0022
+0.0022



Intermodulation distortion

Spectrum graph

 
Left
Right
IMD + Noise, %
+0.0033
+0.0035
IMD + Noise (A-weighted), %
+0.0026
+0.0027



Stereo crosstalk

Spectrum graph

 
Left
Right
Crosstalk at 100 Hz, dB
-79
-79
Crosstalk at 1000 Hz, dB
-82
-82
Crosstalk at 10000 Hz, dB
-75
-75



IMD (swept tones)

Spectrum graph

 
Left
Right
IMD + Noise at 5000 Hz,
0.0022
0.0025
IMD + Noise at 10000 Hz,
0.0023
0.0026
IMD + Noise at 15000 Hz,
0.0024
0.0025