11
Sapphire PURE Innovation PI-A9RX480 Review
Performance: Audio Games »Rightmark Audio Analyzer
We used Rightmark Audio Analyzer together with a loop-back cable to analyze the quality of the on-board audio solution.
Summary
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.25, -0.31 | Good |
| Noise level, dB (A): | -86.2 | Good |
| Dynamic range, dB (A): | 86.3 | Good |
| THD, %: | 0.0041 | Very good |
| IMD, %: | 0.034 | Good |
| Stereo crosstalk, dB: | -85.7 | Excellent |
| IMD at 10 kHz, %: | 0.106 | Average |
General performance: Good
Users of NVIDIA on-board sound solutions will envy this board. Generally nForce4 motherboards have rather mediocre audio quality. Looking at above numbers, everybody who contributed to getting sound did a good job.
Frequency Response
| Frequency range | Response |
| From 20 Hz to 20 kHz, dB | -1.68, +0.25 |
| From 40 Hz to 15 kHz, dB | -0.31, +0.25 |
Noise Level
| Parameter | Left | Right |
| RMS power, dB: | -77.3 | -78.3 |
| RMS power (A-weighted), dB: | -86.1 | -86.2 |
| Peak level, dB FS: | -65.8 | -65.9 |
| DC offset, %: | -0.00 | -0.00 |
Dynamic Range
| Parameter | Left | Right |
| Dynamic range, dB: | +79.4 | +79.1 |
| Dynamic range (A-weighted), dB: | +86.4 | +86.3 |
| DC offset, %: | -0.00 | -0.00 |
THD + Noise (at -3 dB FS)
| Parameter | Left | Right |
| THD, %: | 0.0051 | 0.0041 |
| THD + Noise, %: | 0.0302 | 0.0260 |
| THD + Noise (A-weighted), %: | 0.0120 | 0.0113 |
Intermodulation distortion
| Parameter | Left | Right |
| IMD + Noise, %: | 0.0341 | 0.0390 |
| IMD + Noise (A-weighted), %: | 0.0171 | 0.0172 |
Stereo crosstalk
| Parameter | L <- R | L -> R |
| Crosstalk at 100 Hz, dB: | -79 | -79 |
| Crosstalk at 1 kHz, dB: | -84 | -85 |
| Crosstalk at 10 kHz, dB: | -84 | -82 |
IMD (swept tones)
| Parameter | Left | Right |
| IMD + Noise at 5 kHz, %: | 0.0340 | 0.0339 |
| IMD + Noise at 10 kHz, %: | 0.1122 | 0.1122 |
| IMD + Noise at 15 kHz, %: | 0.1720 | 0.1715 |
Dec 23rd, 2024 05:24 EST
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