RightMark Audio Analyzer test report Testing device | ASUS Xonar D2 Audio TP09 | Sampling mode | 24-bit, 192 kHz | Interface | DirectSound | Testing chain | External loopback (line-out - line-in) | RMAA Version | 6.0.5 | | | | | 20 Hz - 20 kHz filter | ON | Normalize amplitude | ON | Mono mode | OFF | Calibration singal, Hz | 1000 | Polarity | correct/correct |
Summary Frequency response (from 40 Hz to 15 kHz), dB | | Excellent | Noise level, dB (A) | | Excellent | Dynamic range, dB (A) | | Excellent | THD, % | | Excellent | THD + Noise, dB (A) | | | IMD + Noise, % | | Excellent | Stereo crosstalk, dB | | Excellent | IMD at 10 kHz, % | | Excellent | General performance | | Excellent |
Frequency response
From 20 Hz to 20 kHz, dB | -0.11, +0.06 | From 40 Hz to 15 kHz, dB | -0.04, +0.05 |
Noise level | Left | Right | RMS power, dB | -115.4 | -115.3 | RMS power (A-weighted), dB | -116.5 | -116.2 | Peak level, dB FS | -89.9 | -90.2 | DC offset, % | +0.0 | +0.0 |
Dynamic range | Left | Right | Dynamic range, dB | +115.4 | +115.2 | Dynamic range (A-weighted), dB | +116.3 | +116.2 | DC offset, % | -0.00 | -0.00 |
THD + Noise (at -3 dB FS) | Left | Right | THD, % | +0.0003 | +0.0003 | THD + Noise, % | +0.0005 | +0.0005 | THD + Noise (A-weighted), % | +0.0006 | +0.0005 |
Intermodulation distortion | Left | Right | IMD + Noise, % | +0.0007 | +0.0006 | IMD + Noise (A-weighted), % | +0.0004 | +0.0004 |
Stereo crosstalk | Left | Right | Crosstalk at 100 Hz, dB | -104 | -105 | Crosstalk at 1000 Hz, dB | -104 | -104 | Crosstalk at 10000 Hz, dB | -85 | -85 |
IMD (swept tones) | Left | Right | IMD + Noise at 5000 Hz, | 0.0005 | 0.0006 | IMD + Noise at 10000 Hz, | 0.0005 | 0.0005 | IMD + Noise at 15000 Hz, | 0.0005 | 0.0005 |
测试小节: 该规格的测试的参数为声卡的最高标准,可以从较为客观的方面反映出声卡的性能,我们认为它实际上可以用来考验产品标注规格的真实性。从测试成绩看,该卡在这部分的测试成绩相当理想,所有成绩的总评定都是“Excellent”!频响曲线几乎成了一条直线,超过人耳极限20KHz后才产生衰减,因为采样率达到192kHz后,采样率在高频部分的限制得到了相当大的改善,测试成绩比较客观的反映了声卡在这个项目上的性能。在更重要的互调失真的测试三个子项中,声卡的表现同样不错,与标称值相当,因此可以说这款声卡的硬件品质是相当不错的。不过很可惜,在大多数的情况下,我们无法领略到该声卡的优秀之处。或许只有在DVD-Audio或者SACD正式普及后我们才能有福消受。 (相关文章《一锤定音!华硕声卡XonarD2深度试音评测》)
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