Rerurn to Romy the Cat's Site
In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: Voltage vs. CurrentPosted by Paul S on: 9/15/2022
Rick, sure, working volltage is important. What does your inverter require in the way of current in order to produce it's rated voltage at its rated current? I can remember times when I measured "correct" voltage when the battery was functionally useless. I can't think of a battery that is really OK with being drained down past a certain point. Rather, a battery can do only so many extreme cycles in its lifetime, and best to keep it within "working limits". Hence, the "dedicated" smart chargers.
Actually, whatever they are made of, the big mobile audio batteries drive powerful DJ/PA type sound systems for hours on end.
I don't know anything about quieter/better power sources for computer based sound systems. A telecommunications engineer, John Rankin, who posteed here a few times, sent me a SMPS to use on the heaters of my phonostage tubes; but at the time I recieved the SMPS I was just finishing up a mod to swing the second stage negative, and I did not know if or how to adapt it. John insisted on the benefits of SMPS for keeping noise in LNAs and phono stages to the absolute minimum, and he should know, as that was his full-time job. However, I think they also use brick wall filters that might not "work" for "our kind" of audio. Also, everyone in "professional" sound area uses all balanced systems, with everything grounded, and they all just shake their heads at unbalanced audio systems.
Best regards,
Paul SRerurn to Romy the Cat's Site