The Alumen Z-Cap is the newest addition to our line of high-end audio capacitors. The Alumen Z-Cap was specially designed for the tweeter and mid-section of crossovers for passive hi-fi speakers.The improved transparency performance of this new cap is on the same high level as our SilverGold Z-Cap, but with a slightly softer tonal presence and less brightness / sheene / glare in comparison.The Alumen Z-Cap will offer a more neutral presentation in the overall sound in certain crossover designs, and by neutral we refer to the focus will be shifted from what can be a somewhat overemphasized brightness from a Super PP cap, being replaced with a more even balance between the depth of the midrange and the presence of the tweeter.Aluminum Z-Caps are not suitable for use in amplifiers, for this application we recommend our Superior, Silver or SilverGold Z-Caps.