Effect of Amp on the CPU noise of the Clip+
I've just made a strage observation concerning the CPU noise of my Clip+...
On startup my RB'ed Clip+ makes some rather annoying, swirling, hf CPU noise as long as the disk icon is constantly active (about a minute). I suppose it is caused by the auto database refresh feature and the busy SD access it generates. It is very noticable even during playback at moderate volume levels. However, when using my FiiO E5 again, I noticed that this noise had completely vanished - at about the same overall volume level of course. Only when I crank the volume on the FiiO up to the maximum it becomes noticeable again but still much less than on the Clip+ at normal level. Isn't that strange? How could the FiiO possibly reduce that kind of noise?