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Originally Posted by eboy2003 /img/forum/go_quote.gif
The RMAA scores does not mean everything for head-fiers.
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- agreed, but its the only commonly available, easy to use "objective" comparision for "online" stuff
- don't think most here would understand FFT/Bode plots from B&K or HP analyzers...
Quote:
Originally Posted by eboy2003 /img/forum/go_quote.gif
The stock Elite Pro indeed sounds like a low-fi card even the RMAA score is awesome.
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- you mean "flat," audio spectra, as it should be - LOL
Quote:
Originally Posted by eboy2003 /img/forum/go_quote.gif
Since you are also in SV, let's exchange more ideas to make it better.
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- yeah, would be fun. sent you PM (don't know if it's working, after site implosion weeks ago)
- if you choose to socket SB0550 Line-Out, I can give you a matched set of MLCC X7R 60uf caps to play and compare with.
Quote:
Originally Posted by eboy2003 /img/forum/go_quote.gif
I notice you use tant on decoupling and digital section a lot, how are they comparing the sanyo oscon SA/SC series? I definitely would not recommend use those newer polymer solid caps due to their ultra-high leak current. But SA/SC series seems have < 0.01CV leak current, comparable to electrolytic counterparts.
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- a practice that's served for decades for me, doing hi-speed digital designs.
- followed C Bateman, I Catt, B Pease, W Jung, etc., as well as "marketechture" tech/app papers on "Capacitors," over past decades and decided to do some "fun" stuff, applied to audio stuff, starting with SB0460 and now, SB0550.
- can't speak to OSCON SA/SC series yet, playing with "verboten" MLCC for coupling and power de-coupling.
- quick "listen" test with solid polymers, for my taste, sounded a bit "hard" and peaked "sibliants/essing." (to your point, RMAA looked outstanding, however)
(SB0550: Va and Vd power: C104, C133, C131, C154, C55, Line-Out: MLCC, X7R, 60uf, matched set)
- reverted back to Panasonic FM's until MLCC test phase is over...
REFs: sample cross-section of papers/app notes
SOUND OF CAPACITORS:
The "Sound" of Capacitors
PICKING CAPACITORS:
Picking Capacitors - Walter G. Jung and Richard Marsh
Services
Recommended Output Filters for Wolfson Audio DACs:
http://www.wolfsonmicro.com/uploads/...en/WAN0171.pdf
Comparison of MLC and Tantalum Capacitors:
http://www.avxcorp.com/docs/techinfo/mlc-tant.pdf
SOLUTION FOR INCREASING CAPACITANCE DEMAND HIGH CV TANTALUM CAPACITORS
http://www.kyocera.co.jp/prdct/elect...cal/highcv.pdf
Circuit Tradeoffs Minimize Noise in Battery-Input Power Supplies
http://pdfserv.maxim-ic.com/en/an/AN653.pdf
JDI MLCC TANCERM
http://www.johansondielectrics.com/p...am_2007-08.pdf
http://www.johansondielectrics.com/t...-Apps_3-03.pdf