WEET WMK Smooth Foil Aluminum Electrolytic Capacitors For Audio and Speaker System

WEE Technology WMK Bi Polar and Non Polar Axial 1KHZ DF 3% Smooth Plain Foil Aluminum Electrolytic Capacitors for Audio and Hifi System. 

Best replacement for JANTZEN AUDIO PREMIUM ELKO SMOOTH FOIL ELECTROLYTIC CAPACITOR.

Bipolar electrolytic capacitors , also called audio frequency electrolytic capacitors, have a second anode foil which makes them AC voltage resistant and thus suitable for music signals.

Rough electrolytic capacitors (E-Cap raw) have foils whose surfaces have been roughened by a special etching process and thus enlarged. 

Smooth electrolytic capacitors (E-Cap plain), on the other hand, are made from un-etched and thus lower-loss films.