Nice review there Crabdog but honestly, ES100 will be irresistible if it incorporate the newer AK4376A DAC instead of the outdated AK4375A. I guess the AK4375A DAC is chosen instead to keep the ES100 price as affordable as possible.Thanks for the heads up. I didn't want to change the firmware mid-review for the sake of consistency (and fear of bricking it in the process haha). I updated to 1.4.2 just now. Time for some testing ^_^
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