Analyzing CS3318 datasheet I found info that max output capacitance is 100pF. Above that it can gat unstable or needs additional output/buffer stage that can drive higher capacitance.
Maybe that is your issue, long or hi capacitance IC's.
problem 2: distortions in the upper midrange / treble perfectly audible, which appears after several switching on and off of Najda, without ever modifying anything in the configuration of the filters ... This distortion can disappear by "magic" after a change of filter file in the NUC ...
Hi spalmgreI have been looking for a replacement solution for the Najda.
PC + dac8pro have more EQ power. But usability in home environment with need for multiple source connection can not be solved with a PC.
So Najda is still the got to the solution.
I use FIR filters on Hi and Mid drivers. Base and subs are fed straight true to a MiniDSP 2/4 unit where I EQ the bass. This gives much flexibility and solves some of the lacking computing power.
Hi and thank you.Hi spalmgre
You may consider Xilica Solaro QR1 that seems still affordable and very modular although not diy, somewhere around 1500 €
At this point why not thinking of using external dac boards that give you more room for improvement?Just to report back that I'm very happy with the better sound from the Burson's!
The most impactful difference is in the upper midrange and treble - much more natural in terms of timbre and the trails of the tones.
The next step will be to install a 10nf Wima FKP1 across the Vin pins to further improve them. Is this a good choice?
For the capacitors around the op-amps, I've purchased Jantzen Z-Superior 0,82µF (highs), 2,20µF (mids) and Z-Standard 10,00µF for the lows.
I'm still waiting to be delivered and will report back again.
I'm thinking of improving the power input of the Najda.
I'm thinking to exchange the SMD poly caps to a much bigger value (>330uf) and lowest ESR (~7-8mOhms).
Is it safe to remove the inductors (bridging them) or if they are a must I might go to a much bigger current rating?