ASRock 939Dual-SATA2 Review 9

ASRock 939Dual-SATA2 Review

by
W1zzard
,
on ,
Manufacturer: ASRock
Performance: AGP vs. PCI-E »

Rightmark Audio Analyzer



We used Rightmark Audio Analyzer together with a loop-back cable to analyze the quality of the on-board audio solution.



For easier comparison we summed up the individual scores of all tested boards (1: Very poor, 2: Poor, 3: Average, 4: Good, 5: Very good, 6: Excellent).
The sound quality of the 939Dual-SATA2 on-board audio is very respectable. It's better than all other tested nForce4 motherboards.

Summary

Frequency response (from 40 Hz to 15 kHz), dB:+0.18, -1.12Average
Noise level, dB (A):-80.8Good
Dynamic range, dB (A):75.2Average
THD, %:0.038Good
IMD, %:0.079Good
Stereo crosstalk, dB:-78.6Very good
IMD at 10 kHz, %:0.140Average

General performance: Good

Frequency Response



Frequency rangeResponse
From 20 Hz to 20 kHz, dB-7.85, +0.18
From 40 Hz to 15 kHz, dB-1.12, +0.18

Noise Level



ParameterLeftRight
RMS power, dB:-74.2-74.5
RMS power (A-weighted), dB:-79.9-80.8
Peak level, dB FS:-54.9-55.6
DC offset, %:0.441.80

Dynamic Range



ParameterLeftRight
Dynamic range, dB:+72.4+73.5
Dynamic range (A-weighted), dB:+75.2+77.7
DC offset, %:0.431.79

THD + Noise (at -3 dB FS)



ParameterLeftRight
THD, %:0.04070.0377
THD + Noise, %:0.07140.0731
THD + Noise (A-weighted), %:0.06860.0658

Intermodulation distortion



ParameterLeftRight
IMD + Noise, %:0.08050.0791
IMD + Noise (A-weighted), %:0.06440.0638

Stereo crosstalk



ParameterL <- RL -> R
Crosstalk at 100 Hz, dB:-75-76
Crosstalk at 1 kHz, dB:-76-78
Crosstalk at 10 kHz, dB:-74-71

IMD (swept tones)



ParameterLeftRight
IMD + Noise at 5 kHz, %:0.07710.0736
IMD + Noise at 10 kHz, %:0.13690.1356
IMD + Noise at 15 kHz, %:0.20510.2094
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Dec 27th, 2024 13:01 EST change timezone

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