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Discrete OPAMP

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audio-gd

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Joined 2004
audio-gd.com
#1
Recently I have built two type discrete OPAMP, they are upgrade of my old discrete OPAMP,
One name call "Earth", it sound is natural,
Other name call "Sun", it will more clear and dynamic,
 

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#10
Onvinyl said:
Hi audio-gd,

what benefits do you see in cascoding your output stage? At least in my simulation the performance was *worse* (more THD) than without cascode.
Click to expand...

Hi Rüdiger,
This is not really a cascode, as the base is referenced to half the voltage between the output and the power supply, and not clamped to the output as it should be.
 
#12
Hi!Onvinyl:
Sorry for delay reply.
Because my English is so bad,
In the audio circuit, I prefer built two circuit, and test and listen to them, I like the sound of "cascode",
It sound clear but soft,
Some people love tube, if test tube, we can see big THD.
I think, some time, some distortion will let the sound more beautiful.
This circuit is so simple, you can built and test,and listen.
 
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