RightMark Audio Analyzer test report
| Testing device | 2SD669/2SB649 ORIGINAL 10W 9 ohm |
| Sampling mode | 24-bit, 96 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 | -2.4 dB / -2.4 dB |
| Mono mode | ON |
| Calibration singal, Hz | 1000 |
| Polarity | correct/correct |
Summary
| Frequency response (from 40 Hz to 15 kHz), dB | +0.02, -0.32 |
Very good |
| Noise level, dB (A) | -109.2 |
Excellent |
| Dynamic range, dB (A) | N/A |
N/A |
| THD, % | 0.00112 |
Excellent |
| THD + Noise, dB (A) | -95.6 |
Excellent |
| IMD + Noise, % | 0.00213 |
Excellent |
| Stereo crosstalk, dB | N/A |
N/A |
| IMD at 10 kHz, % | 0.00335 |
Excellent |
| General performance | Excellent |
Frequency response
Left |
Right |
|
| From 20 Hz to 20 kHz, dB | -1.19, +0.02 |
-1.19, +0.02 |
| From 40 Hz to 15 kHz, dB | -0.32, +0.02 |
-0.32, +0.02 |
Noise level
Left |
Right |
|
| RMS power, dB | -107.7 |
-107.7 |
| RMS power (A-weighted), dB | -109.2 |
-109.2 |
| Peak level, dB FS | -88.2 |
-88.2 |
| DC offset, % | +0.0 |
+0.0 |
THD + Noise (at -3 dB FS)
Left |
Right |
|
| THD, % | 0.00112 |
0.00112 |
| THD + Noise, % | 0.00142 |
0.00142 |
| THD + Noise (A-weighted), % | 0.00167 |
0.00167 |
Intermodulation distortion
Left |
Right |
|
| IMD + Noise, % | 0.00213 |
0.00213 |
| IMD + Noise (A-weighted), % | 0.00171 |
0.00171 |
IMD (swept tones)
Left |
Right |
|
| IMD + Noise at 5000 Hz, | 0.00412 |
0.00412 |
| IMD + Noise at 10000 Hz, | 0.00242 |
0.00242 |
| IMD + Noise at 15000 Hz, | 0.00352 |
0.00352 |