Hi Guys,
Good day to all.
I bought one AC iPurifier yesterday to try it out because I was pleased with the improvement the iFi iPurifier Spdif (bought 2 a year ago) bring to the sound quality.
I live in Hong Kong. There is no heavy industry or manufacturing industry. The power supply is stable. I have lived for 15 years and have never encountered electricity brownout or blackout.
I have separated the power supply for Digital equipment and Analog Equipment respectively as shown below:
1st Block
Wall wart ==> Power Conditioner ==> Digital Equipment (iPurifier Spdif, MiniDsp Dirac, iPurifier Spdif)
2nd Block
Wall wart ==> Balanced Power Supply ==> Analog Equipment (Oppo 105, ATC Scm40 active speakers)
I have tried to plug the APC iPurifier any places in the 1st Block, there is no audible improvement.
However I have plugged the APC iPurifier in the Wall wart of Block 2. I can perceive an epsilonic improvement: sound is airier, more breath. I can notice a difference in the high frequency spectrum. But there is no noticeable changes the noise floor, low and mid frequency spectrum.
Surely different people will experience different improvement depending on the set-up, gears and AC.
I have couples of inquiries:
1) Why there is no perceived improvement on the Block 1? is it because the AC in Hong Kong is cleaner? Or my Power Conditioner is efficient although it is cheap stuff?
2) In the Block 2, I have plugged the AC iPurifier in the Wall wart. I would like to try to plug it after the Balance Power Supply to see if there is better improvement in the sound. Is it safe to do so?
3) Does the AC iPurifier need break in time? If yes how long? I recall the iFi iPurifier Spdif needed 3 weeks to shine.
4) I have plugged the AC iPurifier in all the Wall warts of my apartment, the Polarity LED show red systematically. Hong Kong uses the same plug as UK. My system sounds fantastic to me. Far from being out of phase as the Polarity LED indicated. Should I ask an electrician to rewire the Neutral and the Hot? Will this make the sound improve much better? Or I should just ignore the Polarity LED?
Anyone can assist in providing me with clues and answers?
Thanks.