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发表于 2022-5-28 23:31
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来自 香港
MOJO没有纯解码输出。
在head-fi.org的Chord Mojo DAC-amp ☆★►FAQ in 3rd post!◄★☆帖子里，设计师Rob Watts亲自解答过这个问题——
Line level mode is just a volume preset for the volume control - nothing else changes.
Mojo has an FPGA (which is digital logic only) a discrete DAC (turning digital signals to analogue via flip-flops and resistors) and a single output amplifier - and that is it.
Conventional DAC headphone amps use differential outputs and have two I to V converters (current to voltage), a differential to single ended converter, and an output amplifier. Wrapped up with that is a analogue filter. So that's a lot of passive components and four amplifiers in the signal path.
Because Mojo's FPGA has extensive digital filtering (at 2048 FS) and has a noise shaper that runs at a very high rate (104MHz) and uses a discrete DAC, I can keep the analogue section radically simpler, and this is one reason why Mojo is so transparent compared to all other DAC amps.
Rob
总结一下就是：因为结构原因，MOJO的解码和耳放是一起的，没有纯解码模式，长按三键开启的所谓“Line-Out”，其实是“Line-Level”，就是一个预设的Volume Control值，此时全输出口电平3V，声音处理上没有任何改变。 |
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楼主: whg1988
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