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楼主 |
发表于 2013-3-19 06:25:48
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就在你贴的网页上:
2. The quality of the power supply for the USB chip in the
DAC is drastically improved, resulting in a clearly discernible
sound improvement. With most USB DACs the connected computer
feeds the USB chip with 5 V voltage power. However, alongside
with the regular 5 V voltage 30 mV up to 150 mV noise voltage
are being transmitted.
以下来自ifi网站:
The IsoPower system is a completely new way to connect your USB audio device. There is the standard USB connection option; but with the upcoming iFi dual-path Gemini USB cable, our engineers developed the IsoPower system which offers the option to run separate power and audio data lines. You wouldn’t place interconnects and power cables together so why should the USB connection do it?
IsoPower eliminates any pollution between data and power lines. It keeps your USB audio data free from contamination and removes the USB Signal noise from the power supply lines, to enjoy the maximum performance from your USB audio device, unhindered. |
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