testing for stability

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Do you mean the gate stoppers?
Yes I know that in many design's with FET's the gatestoppers are selected this way to achieve an equal time constant between N and P channel.

Have you any idea for good the values for the 2SK1530 - 2SJ201 Fet's?

Greetz
 
Can someone help me out with post number 83 from next thread? I'm wondering what causes the strange rising shape when using a 10kHz square wave.

First I thought that the input impdance of the amp was to low, I've tried putting a 22K resistor in series with the input and left the 10µF High pas cap out. All without succes.

http://www.diyaudio.com/forums/solid-state/198209-amp-design-subwoofer-9.html

Schematic post number63:
http://www.diyaudio.com/forums/solid-state/198209-amp-design-subwoofer-7.html
 
I think its the resistor/input capacitance of the mosfets time constant that should be the same, and since n and p devices (even complimentary pairs) usually have different input capacitances the resistors should be different.
 
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