Jetway NC84E-LF Review (Page 11 of 12)

Page 11 - Onboard Sound Frequency Analysis

Frequency response

From 20 Hz to 20 kHz, dB: -1.03, +0.27
From 40 Hz to 15 kHz, dB: -0.31, +0.26

Noise level

RMS power, dB: -84.9, -83.2
RMS power (A-weighted), dB: -86.2, -86.3
Peak level, dB FS: -70.2, -70.2
DC offset, %: -0.0, +0.0

Dynamic range

Dynamic range, dB: +84.8, +83.3
Dynamic range (A-weighted), dB: +86.1, +86.1
DC offset, %: -0.00, -0.00

THD + Noise (at -3 dB FS)

THD, %: +0.0028, +0.0023
THD + Noise, %: +0.0113, +0.0135
THD + Noise (A-weighted), %: +0.0101, +0.0098

Intermodulation distortion

IMD + Noise, %: +0.0455, +0.0448
IMD + Noise (A-weighted), %: +0.0142, +0.0139

Stereo crosstalk

Crosstalk at 100 Hz, dB: -79, -80
Crosstalk at 1000 Hz, dB: -84, -84
Crosstalk at 10000 Hz, dB: -77, -78

IMD (swept tones)

IMD + Noise at 5000 Hz: 0.0134, 0.0132
IMD + Noise at 10000 Hz: 0.0136, 0.0138
IMD + Noise at 15000 Hz: 0.0138, 0.0137

Test Summary:

Frequency response (from 40 Hz to 15 kHz), dB: +0.26, -0.31 - Good
Noise level, dB (A): -86.2 - Good
Dynamic range, dB (A): 86.1 - Good
THD, %: 0.0026 - Excellent
THD + Noise, dB (A): -80.0 - Good
IMD + Noise, %: 0.045 - Good
Stereo crosstalk, dB: -84.6 - Very good
IMD at 10 kHz, %: 0.014 - Very good
General performance: Good


Page Index
1. Introduction, Features, and Specifications
2. Bundle, Chipset, BIOS
3. A Closer Look, Board Layout, Test System
4. Benchmark: EVEREST CPU
5. Benchmark: EVEREST FPU
6. Benchmark: EVEREST Memory
7. Benchmark: PCMark Vantage
8. Benchmark: 3DMark06 Professional
9. Benchmark: PassMark PerformanceTest 7.0
10. Benchmark: SuperPI 1M, Cinebench R11.5
11. Onboard Sound Frequency Analysis
12. Overclocking and Conclusion