After a whole morning of "audiophilical" critical listening on Saturday, I was drained and ended up sleeping until around 5:30 pm. In a hurry, I grabbed my portable Hi-End audio system, which consists of a 5-yuan (≈ 0.7 usd) earbuds and a 30-yuan (≈ 4.19 usd) usb dongle, and headed to the...