I can not edit my post so this is part 2 of my post so I can explain why I am confused:
circuitsbasics 20w*2 lm3886tf amplifier guide : Stereo amplifier, 250VA toroidal i.c.w. 8200 uF*4 capacitors (they do not explain why they pick 8200uF)
neurochrome power86 : 3300uF * 2 (if i remember correctly).
neurochrome toroidal calculation : 100VA (instead of 250VA by circuitbasics)
The designmethod-difference and outcome is quite huge, I believe this could be under in the influence of using the crestfactor-method (or not). Hopefully I can even go lower capicitance then the power-86, because i will have only 1 channel per psu.
Normally I can find similar methods on the internet, but now i have carlosfm-psu on decdun-blog with 2x10.000 uF and I do not know why. I have a circuitbasics which has 4x8200uF and I can not seem to find why they use that capicitance. And neurochrome only has 2x3300uF (iirc) and I can not find out why without buying the psu.
Hopefully you guys and girls understand that I find this confusingand am looking for guidance.