- Input stage design
- Unforgiving nature of better linearity
- Power supply sensitivity
- Output filter impedance matches
Slap and Ship
I mentioned yesterday that preconceived notions and old biases die hard - and sometimes stay with us forever. It's something we're never going to fix as it is simply human nature. But what we can do is educate ourselves as to what caused the opinions to be generated in the first place and then see if they still exist. One such cherished belief is that class D amplifiers are fatiguing over time. This was absolutely true at one point in the technology's development but I would suggest that, for some of the better designs out there, it is no longer so. Let's take a look at what caused these amplifiers to earn their reputation. I would characterize, in broad strokes, four area where these amplifiers struggled when first launched:
- Choosing a selection results in a full page refresh.
- Opens in a new window.