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The Well Audio.
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multiblitz
Hi Andrea,
I am still impressed how much the sound of the whole system depends on the power supply…
I would like to try a pure passive, no regs, supply starting with the clocks.
I made good experience with LCLC and LT4320, very low resistance chokes like 50mohm, nano cores, and super through caps from Nichicon…
Is there a ripple spec to meet for the drixco ?
Maybe later i d try as well for the fifo or dac, but the clocks seem to be quiet sensitive and its only one psu…
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The Well Audio
You can take as reference the ripple coming from a standard LM317 since the measured phase noise with such regulator was the same as using better linear regulator or batteries.
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ok, The LM317 claims a ripple rejection of -64db…which for a 15V output supply would result in 20mVpp ripple if I got it right.
With a simple LC using 170mH and 200mohm choke and a 50000uF cap after that I will get 6mVpp…
…so a simple LC instead of a LCLC should be enough ?
That is something I can easily test as all the components are in the house…
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The Well Audio
Theoretically yes, but never tested.
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