All transistors have SOA limits.
This is not true. Current is required to charge and discharge the MOSFET's input capacitance.
I believe a common reason cited is that there is simply that less cross-over distortion is achievable with BJTs than FETs, mainly due to the superior performance as a follower or in the CFP topology, which is basically the high transconductance in another guise.
However there are downsides, principally the extra complexity of keeping the bias point spot-on as device temperatures change, as bias accuracy is more crucial to getting the lowest distortion with BJTs - a few millivolts can matter - bias drift over time is also a thing to note.
And another big downside is secondary breakdown, here lateral MOSFETs win hands down as being immune to this.
I remember several years ago, a social media's friend said lateral mosfet is the best because many "high-end" amplifier used it. And then we met to compared our amplifiers. I think his amplifier is Goldmund clone. My amplifier is all BJT, blameless topology with TMC compensation. He admitted, my amplifier sound better.
It is not because BJT is better, but depend on the implementation.
It is not because BJT is better, but depend on the implementation.
Ah, there's that term again..... "high-end" 🙄
I don't find justification of the term being used for, mostly, expensive and/or brand-name equipment.
It's overly used, particularly in today's marketing world.
I've come across many "budget" or "midline" amplifiers that are very satisfying, and of course inexpensive.
And I read various blogs of these where knowledgable individuals praise them.
Imagine that!
For instance......A lowly 25 watt/ch receiver that cost a mere $199 in 1972 being praised and coveted by people... and with internet sales sites jacking up the price 3 times original.
I myself own one of these, and indeed it produces beautiful music once restored.
So much for "high-end".
I don't find justification of the term being used for, mostly, expensive and/or brand-name equipment.
It's overly used, particularly in today's marketing world.
I've come across many "budget" or "midline" amplifiers that are very satisfying, and of course inexpensive.
And I read various blogs of these where knowledgable individuals praise them.
Imagine that!
For instance......A lowly 25 watt/ch receiver that cost a mere $199 in 1972 being praised and coveted by people... and with internet sales sites jacking up the price 3 times original.
I myself own one of these, and indeed it produces beautiful music once restored.
So much for "high-end".