BIGINNER'S CFA 120w amplifier

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Joined 2015
BIGINNER'S CFA 150w amplifier

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This my ever first CFA amplifier. To start with I chose the most basic topology but simplifying further the output voltage follower with a pair of complimentary lateral MOSFETS. This circuit has just born and needs some work . I looked around for a similar circuit to learn from , I submit it to your advice .
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Disabled Account
Joined 2015
Why make things complicated when simpler functions better hæ. By eliminating the cascodes and replacing the mirrors with driver transistors I get even better distortion numbers. The open loop frequency now is 66khz!.






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Disabled Account
Joined 2015
150w bootstrapped

By bootstrapping I could higher the output to 150w 0.5% , but the PSRR became 45db . So I modified the low level filtering .
If someone can explain me what I get better of using Diamond input stage.






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