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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: Electricity is important in the entire playback chainPosted by drdna on: 8/25/2019
 Paul S wrote:
Although "consistent" AC might be something equipment designers could allow for, I think the problems we are dealing with are both myriad and systemic, and we are probably stuck with these problems or some other systemic issues, until we develop some other energy source, or at least another way to deliver it.
The issue that will continue to be a problem is that the entire playback chain is not accounted for. We go to great lengths with PurePower and other devices to make the AC as stable possible, to reduce the variability, spikes, noise, etc. in the AC supply. Doing this makes the stereo equipment run in a possibly more stable state, which seems to be associated with better sound playback. Could we make it "perfect?" What about a completely isolated DC power supply for every device? Yes and no.

Even with all this, we do not account for the variability of the AC used in the recording process to make the records. It is unlikely to have been a "perfect" electricity day in the recording studio, the mastering sessions, the cutting lathe, etc. NOW, perhaps if we had a control signal, like a pure sine wave or square wave, recorded along with the audio tracks, we could introduce into our playback system a device to adjust the output to match this control signal, and this might reduce the variability and bring us closer to the reproduction of the sound waves of the actual recording event. However, it is unlikely to ever happen. Still, it is a thought, and maybe this can help us have insight into what we can do to combat bad electricity days.

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