Isn't it what allowed us to have small, efficient and good sounding amplifiers rather than wasteful big piles of iron ? Even if these can sound good.
In a world of finite ressources, the least efficient solution is the one which has to prove its merits.
You do realise that he took the series resistor amp and surround it with GNFB. It is a composite amp with very low harmonic distortion.
I think it would probably be ok with simple music, not so much with complex music. I have Nelson's H2 to play with, why would I bother building an zero feedback amp when I can have it all in one? 😉
Please read his reports carefully. He did one test with a normal GC LM3875, then added a 0.27 Ohm resistor to it's output and redid the measurements.
Later, he changed the My_ref too.
Please guys, read what Mauro wrote (2 Documents and maybe some posts of the thread) and don't jump to conclusions, don't pick up just some sentence/quote (like I was accused for some posts ago).
Later, he changed the My_ref too.
Please guys, read what Mauro wrote (2 Documents and maybe some posts of the thread) and don't jump to conclusions, don't pick up just some sentence/quote (like I was accused for some posts ago).
Brilliant! Economics is what gives 'life' to supply and demand. Modern technical solutions like Class D and chip amplifiers, offer what older technologies could NOT. Production costs are crucial considering a product's accessibility to the masses.00940 said:
In the olden days of just after World War II, only a very small fraction of the population could afford the luxury of a TV, a Sound system and a radio. Mass production and miniaturisation have made these a normality across the entire social spectrum.
Why only “simple music”? What if H2 has nothing to do with it? I think you would be surprised by reality.
i remember that there was a valve amplifier from Dynaco i think...that had variable damping factor...Why did that principle die?I find it really interesting as it gives some speakers the freedom to sing their own way...
... or how flawed the "Hifi" concept (DIN) really is. It's a good thought but not good enough and therefore people abandon it. They just want to have fun. Cant blame them - in a half crappy situation, distorsion make it more fun 😉
What is more surprising is that many seemingly insightful persons seem to hang on to a poorly specified and crappy measuring unit in the system chain and are completely unwilling to question that very unit but rather blame the other units... go figure.
To me, high performance low distorsion units in every position with the correct FR and at listening position will always beat the effect boxes.
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