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Sapphire PI-AM2RS690MHD AMD RS690 w/ HDMI Review
Performance: 1080p Playback »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, -0.33 | Good |
| Noise level, dB (A): | -81.2 | Good |
| Dynamic range, dB (A): | 80.9 | Good |
| THD, %: | 0.011 | Good |
| IMD, %: | 0.033 | Good |
| Stereo crosstalk, dB: | -78.8 | Very good |
| IMD at 10 kHz, %: | 0.107 | Average |
General performance: Good
Considering that the whole motherboard costs a lot less than a high-quality sound card, the onboard audio performance is satisfying. Home theater enthusiasts will not trust any onboard audio and buy and additional sound card anyway. An SPDIF output is included in the package via an additional PCI slot bracket.
Frequency Response
| Frequency range | Response |
| From 20 Hz to 20 kHz, dB | -1.72, +0.25 |
| From 40 Hz to 15 kHz, dB | -0.33, +0.25 |
Noise Level
| Parameter | Left | Right |
| RMS power, dB: | -64.4 | -67.0 |
| RMS power (A-weighted), dB: | -80.7 | -81.2 |
| Peak level, dB FS: | -55.8 | -57.4 |
| DC offset, %: | 0.00 | 0.00 |
Dynamic Range
| Parameter | Left | Right |
| Dynamic range, dB: | +63.3 | +65.1 |
| Dynamic range (A-weighted), dB: | +80.9 | +81.3 |
| DC offset, %: | 0.00 | 0.00 |
THD + Noise (at -3 dB FS)
| Parameter | Left | Right |
| THD, %: | 0.0110 | 0.0111 |
| THD + Noise, %: | 0.0990 | 0.1003 |
| THD + Noise (A-weighted), %: | 0.0234 | 0.0229 |
Intermodulation distortion
| Parameter | Left | Right |
| IMD + Noise, %: | 0.0342 | 0.0331 |
| IMD + Noise (A-weighted), %: | 0.0256 | 0.0247 |
Stereo crosstalk
| Parameter | L <- R | L -> R |
| Crosstalk at 100 Hz, dB: | -72 | -72 |
| Crosstalk at 1 kHz, dB: | -77 | -78 |
| Crosstalk at 10 kHz, dB: | -76 | -79 |
IMD (swept tones)
| Parameter | Left | Right |
| IMD + Noise at 5 kHz, %: | 0.0389 | 0.0387 |
| IMD + Noise at 10 kHz, %: | 0.1143 | 0.1140 |
| IMD + Noise at 15 kHz, %: | 0.1680 | 0.1685 |
Dec 4th, 2024 09:00 EST
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