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发表于 2024-5-7 11:27
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来自 北京
好问题,我从来没有考虑过这个,看了两台机器的说明后依然有点懵逼,于是交给了AI,以下是答案:
To configure the ATC SCM 20 Pro's input sensitivity setting optimally with the Constellation Inspiration Preamp 1.0, you should consider the preamp's output levels. The Constellation Inspiration Preamp 1.0 has a very low Total Harmonic Distortion + Noise (THD+N) at different output voltages, achieving <0.001% at 2V output across the audio band from 20 Hz to 20 kHz [oai_citation:1,Preamp 1.0 – | Constellation Audio](https://www.constellationaudio.com/inspiration/preamp-1-0/). This level of output (2V) matches one of the selectable input sensitivity options on the ATC SCM 20 Pro, specifically the 2V/+8.2dBu setting.
Given that the Constellation Preamp 1.0 can deliver such a clean signal at 2V, selecting the 2V/+8.2dBu input sensitivity on your ATC speakers would be appropriate. This setting should accommodate the output from the preamp effectively, optimizing the signal-to-noise ratio and dynamic range of your audio setup. Additionally, setting the input sensitivity trim on the ATC SCM 20 Pro to the reference position (fully clockwise at 0dB) will initially ensure no additional attenuation, providing a straightforward baseline to start from. Adjust the trim potentiometer only if you find the sound level needs fine-tuning.
This configuration will likely result in the best match between your preamp and speakers, minimizing distortion and maximizing fidelity [oai_citation:2,Constellation Audio Inspiration Preamp 1.0 Stereo Preamplifier Manual | HiFi Engine](https://www.hifiengine.com/manual_library/constellation-audio/inspiration-preamp-10.shtml).
你的机器如果是4.2 V,按上面的逻辑应该也是2v/8.2dBu的设置,sensitivity trim应该设在0
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