Gigabyte EP45-DQ6 Review (Page 11 of 12)

Page 11 - Onboard Sound (RMAA 6.06) Analyzation

Gigabyte did not make any particular claims about high performance integrated audio this time. The Realtek ALC889A 'high definition audio' codec may seem all so common, but it's always interesting to test and see how it really performs combined with the supplied DAC, EMI shielding, and the such. The Gigabyte EP45-DQ6's onboard audio even has support for Dolby Digital Live. Let's run it through RMAA 6.06 and see how it sounds (No pun intended).

Test Information:

Testing device: Realtek HD Audio output
Sampling mode: 24-bit, 48 kHz
Interface: DirectSound
Testing chain: External loopback (line-out - line-in)
RMAA Version: 6.0.6
20 Hz - 20 kHz filter: ON
Normalize amplitude: ON
Level change: 0.3 dB / 0.2 dB
Mono mode: OFF
Calibration signal, Hz: 1000
Polarity: inverted/inverted

Frequency response

Noise level

Dynamic range

THD + Noise (at -3 dB FS)

Intermodulation distortion

Stereo crosstalk

IMD (swept tones)

Test Summary

Frequency response (from 40 Hz to 15 kHz), dB: +0.01, -0.02 - Excellent
Noise level, dB (A): -87.9 - Good
Dynamic range, dB (A): 87.8 - Good
THD, %: 0.0045 - Very good
THD + Noise, dB (A): -80.3 -Good
IMD + Noise, %: 0.012 - Very good
Stereo crosstalk, dB: -87.0 - Excellent
IMD at 10 kHz, %: 0.012 - Very good
General performance: Very good

Page Index
1. Introduction, Features, and Specifications
2. Bundle, Chipset, BIOS
3. A Closer Look, Board Layout
4. Test System; Benchmark: 3DMark06
5. Benchmark: PCMark05
6. Benchmark: Cinebench R10, SuperPI 1M
7. Benchmark: EVEREST CPU
8. Benchmark: EVEREST FPU
9. Benchmark: EVEREST Memory
10. Benchmark: EVEREST Memory Latency, HDTach
11. Onboard Sound (RMAA 6.06) Analyzation
12. Overclocking and Conclusion