Creative Sound Blaster X7, Руководство по эксплуатации продукта, Страница: 19 / 23

Intermodulation distortion
IMD (swept tones)
Stereo crosstalk
Left Right
IMD + Noise, % +0.0026 +0.0025
IMD + Noise (A-weighted), % +0.0014 +0.0015
Left Right
Crosstalk at 100 Hz, dB -113 -113
Crosstalk at 1000 Hz, dB -116 -114
Crosstalk at 10000 Hz, dB -84 -86
Left Right
IMD + Noise at 5000 Hz, 0.0021 0.0027
IMD + Noise at 10000 Hz, 0.0015 0.0018
IMD + Noise at 15000 Hz, 0.0014 0.0021
Appendix
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S O U N D B L A S T E R X 7 P R O D U C T E X P E R I E N C E G U I D E S O U N D B L A S T E R X 7 P R O D U C T E X P E R I E N C E G U I D E
RightMark Audio Analyzer
Test Report for Sound Blaster X7 (24-bit, 44 kHz)
Testing device Speakers (Sound Blaster X7)
Sampling mode 24-bit, 44 kHz
Interface MME
Testing chain External loopback (line-out - line-in)
RMAA Version 6.4.0 PRO
20 Hz - 20 kHz filter ON
Normalize amplitude ON
Level change -0.1 dB / -0.3 dB
Mono mode OFF
Calibration signal, Hz 1000
Polarity correct/correct
Summary
Frequency response (from 40 Hz to 15 kHz), dB +0.02, -0.11 Excellent
Noise level, dB (A) -118.8 Excellent
Dynamic range, dB (A) 118.8 Excellent
THD, % 0.0015 Excellent
THD + Noise, dB (A) -94.1 Very good
IMD + Noise, % 0.0025 Excellent
Stereo crosstalk, dB -115.7 Excellent
IMD at 10 kHz, % 0.0018 Excellent
GENERAL PERFORMANCE VERY GOOD