I've posted that once upon a time I was out drinking sake with the managing direction of amplifier engineering for a $3B autosound company. He said some very interesting things, such as that amplifiers do not really provide power, they output current and the power is kind of a byproduct. Cost was thus related to current and driving the same power into low impedances more expensive. And that losses were proportional to IIRC the square of the current or more, which makes sense if you consider Ohm's Law. That was in a Class AB context and considering devices and designs of the time.
So I wonder what everyone knows and can contribute about losses and stresses in modern amplifiers, Class D in particular. For instance I read that EPDR only applies to Class AB output stages-OK, then what applies to Class D? Is it still true that a 100W amplifier into 8Ω will have fewer losses than 100W into 1Ω?
So I wonder what everyone knows and can contribute about losses and stresses in modern amplifiers, Class D in particular. For instance I read that EPDR only applies to Class AB output stages-OK, then what applies to Class D? Is it still true that a 100W amplifier into 8Ω will have fewer losses than 100W into 1Ω?
