Original from here:
Part 1: http://blog.sina.com.cn/s/blog_1323b8cac0102wtkz.html
Part 2: http://blog.sina.com.cn/s/blog_1323b8cac0102wv7l.html
I asked the author for the permission to translate into English, so here we are. Beware that most of the translation was done by google, I didn’t fix the grammar (which I wasn’t that good neither), I just amend it so some totally meaningless phases now become readable. The full translation is posted here:http://www.computeraudiophile.com/f6-dac-digital-analog-conversion/power-supply-8-group-test-linear-power-supply-and-switchedmode-power-supply-31879/
As the post is fairly long, let me just repost the Test Summary and my own conclusions here: Test Summary (translated):
Finished statistics data, the picture is more clear.
Do not know whether it is test instrument issue or a human issue. Most specifications on power supply seems unrealistic. We later added some of the daily used items, battery banks, phone charger the first, battery for additional reference.
iFi iPower 9V HiFi SMPS 100% win over HIFI LPS, from the power measured, and the ripple test, with eye dropping new technology, traditional idea on SMPS to be reversed.
SMPS vs LPS is no longer the issue, now really depends on the actual product.
Before the posting I shared the article with other friends, they pointed out that most LPSs are not done by regular manufacturers, but by a personal studios.
As SMPS and LPS compared, SMPS is much more complex to design , not simply stacking with audiophile components. LPS is relatively simple. But iFi in addition to the power also has DAC, amplifier, etc., especially the IDSD DAC, and it’s a British brand and so on. It is not difficult to see that the technical reserves are not comparable to the personal studio ah.
Thanks to the cousin to accompany the whole day, from day to night (with power outage in the middle), the next opportunity to see if he dare to show his face, thank you for reading.
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