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 |
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 |
From 20 Hz to 20 kHz, dB | -2.06, +0.05 |
From 40 Hz to 15 kHz, dB | -0.59, +0.05 |
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 |
Left |
Right |
|
Dynamic range, dB | +78.8 |
+78.0 |
Dynamic range (A-weighted), dB | +78.5 |
+77.6 |
DC offset, % | +0.00 |
+0.00 |
Left |
Right |
|
THD, % | +0.0040 |
+0.0098 |
THD + Noise, % | +0.0192 |
+0.0214 |
THD + Noise (A-weighted), % | +0.0167 |
+0.0203 |
Left |
Right |
|
IMD + Noise, % | +0.0234 |
+0.0254 |
IMD + Noise (A-weighted), % | +0.0203 |
+0.0220 |
Left |
Right |
|
Crosstalk at 100 Hz, dB | -64 |
-63 |
Crosstalk at 1000 Hz, dB | -76 |
-75 |
Crosstalk at 10000 Hz, dB | -74 |
-74 |
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 |