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help understanding amplifier schematic

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Tweeters also have a resonance that affects the sound. Good damping from the (solid state) amplifier controls the tweerer so you don't hear the resonance.
 
Change the 1M resistor to 50k or 100k, what you have. Even try 10k. Change the input cap from .01 to .1uf. Let us know what happens, please.

the results are excellent! i'm very pleased! :)

i'm wondering if i could connect the screen grid directly to the (+) of
the psu and then decouple it with a 10-22uF capacitor.

P.S i decided to use DIN connectors as once used to be, but unfortunately i couldn't find speaker DIN, only the 5 pole ones! so i'm going to use them for input and for output, i'll post photos soon.
 
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