Hello to all, I really hope I won't duplicate any thread, I searched for a "direct answer" but I didn't manage to found it.
I' recapping and modding an Azur 640a V2 and I'm quite pleased with its sound in my music workstation where it's driving a pair of M&K S-85, I found the combination amp-speaker perfect for long, non-fatiguing mix sessions with a good reliability in what you're hearing compared to what you'll find in out-of-studio environment.
I read quite a lot about this amplifier and I putted my experience in what I like to hear, so I changed all ceramic capacitor in the signal path with polystirene or mica ones, substitute all BP electrolytic capacitor with Nichicon Muse BP (when not eliminated with direct coupling...) in parallel with polystirene small value caps, Silmic and BC where was possible to do it, I-don't-remember-the-brand (but good) resistor in input stage, all opamp with lm4562 (but on socket, to play with some interesting opamp swap)... well the usual things you do, something for technical reason, something for personal taste and something... for fun, that is always a good thing.
Now I'm in the power supply capacitor substitution stage, and I'd need an advice in the alternatives I have chosen: Nichicon KW (UKW1H332MHD) and Cornell Dubilier CKS (338CKS050M), both 3300uF 50V caps. I want to reach a reasonable increasing in the value of filter capacitors without it becomes excessive, expecially for my environment and my specific use I prefer to mantain velocity vs power reserve; furthermore I know they are 50V instead of the 63's ones utilized in the amp, but I measured the voltage at 44.5V for rail and I'll take the risk. The question is: based on the technical parameters, CD seems to be superior to Nichicon, higher ripple current (3,22 A vs 2,36), lower DF (0,1 vs 0,12, meanings, in my ignorance, lower ESR, too, I hope I'm thinking right), but... Nichicon is for audio, and CD is a "General Purpose Electrolytic Capacitor". The price is practically the same...
Please can someone give me an advice based upon its listening and technical experience, if he had the opportunity to work with both of them?
Thank you a lot for your attention
I' recapping and modding an Azur 640a V2 and I'm quite pleased with its sound in my music workstation where it's driving a pair of M&K S-85, I found the combination amp-speaker perfect for long, non-fatiguing mix sessions with a good reliability in what you're hearing compared to what you'll find in out-of-studio environment.
I read quite a lot about this amplifier and I putted my experience in what I like to hear, so I changed all ceramic capacitor in the signal path with polystirene or mica ones, substitute all BP electrolytic capacitor with Nichicon Muse BP (when not eliminated with direct coupling...) in parallel with polystirene small value caps, Silmic and BC where was possible to do it, I-don't-remember-the-brand (but good) resistor in input stage, all opamp with lm4562 (but on socket, to play with some interesting opamp swap)... well the usual things you do, something for technical reason, something for personal taste and something... for fun, that is always a good thing.
Now I'm in the power supply capacitor substitution stage, and I'd need an advice in the alternatives I have chosen: Nichicon KW (UKW1H332MHD) and Cornell Dubilier CKS (338CKS050M), both 3300uF 50V caps. I want to reach a reasonable increasing in the value of filter capacitors without it becomes excessive, expecially for my environment and my specific use I prefer to mantain velocity vs power reserve; furthermore I know they are 50V instead of the 63's ones utilized in the amp, but I measured the voltage at 44.5V for rail and I'll take the risk. The question is: based on the technical parameters, CD seems to be superior to Nichicon, higher ripple current (3,22 A vs 2,36), lower DF (0,1 vs 0,12, meanings, in my ignorance, lower ESR, too, I hope I'm thinking right), but... Nichicon is for audio, and CD is a "General Purpose Electrolytic Capacitor". The price is practically the same...
Please can someone give me an advice based upon its listening and technical experience, if he had the opportunity to work with both of them?
Thank you a lot for your attention