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Apogee Symphony Desktop 参数官网已经贴出来了
Mic Preamps
Gain: Up to 75 dB and advanced stepped gain circuit design
Selectable 48v phantom power, Soft Limit and polarity invert
EIN: 129dB (un-weighted) @ 60dB, 150 Ohm input
Max input level: +20dBu
Input impedance: 150 – 4K Ohm (default)
Max Hi-Z input level: 14dBu
Hi-Z input impedance: 220k/470k/>20M Ohm
A/D Conversion
Max input level (+4dBu ref/Mic): +20dBu
Max input level (-10dBV ref): +6dBV
Input impedance: 4KOhm
Freq resp 10 Hz -20Khz: > +/-0.2dB (@44.1Khz)
Rel. THD + N: -113dB
Dyn. Range: 123dB (A-weighted)
D/A Conversion
Max output level (+4dBu ref): +20dBu
Max output level (-10dBV ref): +6dBV
Line output impedance: 50 Ohm
Freq resp 10Hz -20 Khz: > +/- 0.05dB (@44.1Khz)
Rel. THD+N : -114dB
Dyn Range: 129dB (A-weighted)
Headphone Max output level:
● 520mW into 30 Ohm
● 90mW into 600 Ohm
Headphone Rel THD+N: -111 dB with 600 Ohm load
Headphone Dyn Range: 128dB (A-weighted)
Headphone output impedance <0.5 Ohm
Gain: Up to 75 dB and advanced stepped gain circuit design
Selectable 48v phantom power, Soft Limit and polarity invert
EIN: 129dB (un-weighted) @ 60dB, 150 Ohm input
Max input level: +20dBu
Input impedance: 150 – 4K Ohm (default)
Max Hi-Z input level: 14dBu
Hi-Z input impedance: 220k/470k/>20M Ohm
A/D Conversion
Max input level (+4dBu ref/Mic): +20dBu
Max input level (-10dBV ref): +6dBV
Input impedance: 4KOhm
Freq resp 10 Hz -20Khz: > +/-0.2dB (@44.1Khz)
Rel. THD + N: -113dB
Dyn. Range: 123dB (A-weighted)
D/A Conversion
Max output level (+4dBu ref): +20dBu
Max output level (-10dBV ref): +6dBV
Line output impedance: 50 Ohm
Freq resp 10Hz -20 Khz: > +/- 0.05dB (@44.1Khz)
Rel. THD+N : -114dB
Dyn Range: 129dB (A-weighted)
Headphone Max output level:
● 520mW into 30 Ohm
● 90mW into 600 Ohm
Headphone Rel THD+N: -111 dB with 600 Ohm load
Headphone Dyn Range: 128dB (A-weighted)
Headphone output impedance <0.5 Ohm
qianyao 发表于 20-10-2 10:10
90mW into 600 Ohm
600勉强推动吧。
300一下肯定是无压力了
毕竟现在600欧的产品不多了，我记得HD800也就是300欧。拜亚是250。