窮人DIY HD650 耳擴大作戰

sd005 · 發表於 2011-4-3 18:27

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先入HD650,但一直找吾到合適耳擴drive對HD650,迫住上個禮拜買料自己砌,

sd005 · 發表於 2011-4-3 18:58

本帖最後由 sd005 於 2011-4-3 18:59 編輯

RightMark Audio Analyzer test report
Testing device E-MU 0404 | USB
Sampling mode 16-bit, 44 kHz
Interface MME
Testing chain External loopback (line-out - line-in)
RMAA Version 6.2.3

20 Hz - 20 kHz filter ON
Normalize amplitude ON
Level change -1.0 dB / -0.9 dB
Mono mode OFF
Calibration singal, Hz 1000
Polarity correct/correct

Summary
Frequency response (from 40 Hz to 15 kHz), dB +0.01, -0.09 Excellent
Noise level, dB (A) -86.1 Good
Dynamic range, dB (A) 86.0 Good
THD, % 0.0055 Very good
THD + Noise, dB (A) -77.9 Average
IMD + Noise, % 0.062 Good
Stereo crosstalk, dB -77.3 Very good
IMD at 10 kHz, % 0.012 Very good
General performance Very good