Elna's highest-grade audio electrolytic capacitor, the Purecap RFO, 50V 470μF, set of 2. Related: Nichicon Muse A set of 2 Elna Purecap RFO audio electrolytic capacitors, the highest grade, 50V 470μF. Unused. Height: 21mm Radius: 12mm Lead spacing: 5mm Lead length: 5mm Approximate measurements, taken by an amateur. The sound quality maintains the softness of high frequencies to some extent, like Elna's Silmic series, while enhancing the resolution in a modern Hi-Fi style, producing excellent sound from low to high frequencies. Being the highest grade using synthetic mica, I believe the sound quality is quite good. 2 sets remaining. No restock planned.