Jensen make 4 different types of copper foil capacitors, all with the same internal make up but fitted inside different enclosures. We have the lower cost aluminium can, highly popular for those on a budget. Then we have the copper can type, probably the more well known of copper foil types, then the paper can type and ceramic can type. All these enclosures offer slighly different characteristics to the sound. The copper can version is incredibly musical, with great detailing and sound stage, a real valve amp capacitor. Fitted with pure silver leadouts of diameter 1mm, lengths 50mm / 60mm. The body of this capacitor is not insulated so be careful with positioning in your equipment.