- Mar 1, 2018
- Gold Coast, Queensland, Australia
Right. And I bet they had low ft and limited SOA. Trying to design an effective feedback amp with those old transistors was a pain. Just look at the distortion figures Locanthi shows at 20kHz. You had to do tricks with zeros etc.
They are doing tricks right now with other designs. Ever wonder why we don't see any high power THD tests particularly with Class Ds? 1kHz is a joke. Especially at a measly 5W.
Run full power, full bandwidth and let's see the results.
Even a full power 20-20kHz FR plot, both channels driven. When did you last (ever) see that? Power bandwidth? (-3dB) Ask an ASR member about that and see what you hear...crickets...