fdd5d689_e_Notes_on_Coupling_Capacitors__Impressions_HV
[Brand] Panasonic 4.7uF/50V BP (Bi-Polar) Electrolytic $0.24 [Impressions LV] These come in lower voltages for the same price. If you buy 10, the price drops to $0.15. Also, they are a pretty shiny blue color. That's the good news, and unfortunatly, that's really the only good news. When it comes to power supply caps, I really like the Panasonic FM series. In fact, I like them over Nichicon Muze KZ caps finding them warmer and smoother sounding. They are not quite Cerafine, but they are not that far off either. Anyway, I was hoping that some of the FM magic would rub off onto the bi-polar and that these might be cheap giant killers. Instead, they are harsh and grainy sounding. Still, worth trying because they are so cheap, but they made my dac sound like a cheap consumer grade cd player rather than the magical beast that it is. I'm not even sure what to do with the rest of the 10 I bought. Oh well. [Rating] 1 [Impressions HV] 
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ecp audio diy: Some Notes on Coupling Capacitors
Impressions HV