good discussion on power cords


jimf421
Only robberrttddidd knows what he’s talking about. Isn’t that the telltale sign of psychosis? 🤪
You could just admit you don't have any real engineering knowledge ...

andy21,176 posts07-06-2020 12:46am^^^ OK, whatever, so you're a pretty good at copy and paste.  

This is what Hanson said. As long as the power cord gets the current to the power supply it's doing its job, he's not talking about the freaking cord. It doesn't matter if it costs $1 or $1000.


When you understand how an amplifier works—that you're making a copy of the signal by modulating the power supply—then you see that the power supply directly drives the speaker. Anything that's not right about the power supply is going straight into the speakers. That's why we use such a huge power supply—take off the lid and you'll see that about 90% of the innards are the power supply. We have a giant transformer, stacks of chokes, and all those filter capacitors to regulate the front-end. Compared to the audio circuitry, whether you're looking at board-space or cost, that stuff represents 80-90% of the design.