GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.

Post Subject: The Mysteries of AC/DC/ACPosted by Paul S on: 6/4/2010

Romy, you may have seen my meandering post a couple of pages back, where I took a "theoretical" approach to using batteries, and it promptly got out of hand from a purely practical point of view, to say the least. In the case of the "Giant Battery Pack", there must be a LOT of them, and charging all those batteries is no small matter. Also, I suspect that isolating a charging system that's active during system play is no cakewalk, either. In fact, I have wondered if the PP somehow hit upon a way to actually use all or part of some "quality" of the conversion chain to +/- "treat the sound" in some way, since your measurements, at least, suggest it is not the "pure sine wave", per se that is getting the sonic part of the job done, not to mention the other "perfect sine wave" offerings that are disappointing in terms of sound.

"Good" batteries actually have remarkably fast current delivery, but I know very little about the pure sine wave converters with respect to "rise time", nor do I know what sort of effects these devices have on the sound as they convert the DC to AC.

The regenerators one sees today are more and more relying on step-up/down, switching power conversion, to keep things small and efficient, and I think that microprocessors are getting to be the norm in terms of regulation, going both ways. It sure looks like this can work, based on PP success with sound, but who can say how their battery figures in, apart from "adjusting" sag (not that this is a small matter...). From reports tendered here, it does not sound like that battery offers "total" isolation from the line and conversion systems when the thing is plugged in, and, of course, it also sounds like it usually does not need to.

Best regards,
Paul S

Rerurn to Romy the Cat's Site