Since the demise of Black Gate capacitors, DIYers have turned to the excellent Elna audio grade of the range of capacitors, namely the Elna Simics and Elna Cerafines. Elna Silmic RFS ElectrolyticsThe Elna Silmic are high-grade Silk fiber capacitors for Audio. The SILMIC series are Elna's highest grade audio capacitors that exhibit superior… Elna Cerafines ROA ElectrolyticsThe Cerafine series realize high audio quality by super fine ceramic particles adopted in the fibers of the electrolytic separating paper. Charge/… Elna RBD Electrolytic Bipolar CapacitorsThe Elna RBD are bipolar (non-polar) miniture aluminium electrolytic capacitors for audio use. Elna Axial Electrolytic NOSThese "Now Old Stock" capacitors were used heavily in the 80s and 90s providing high reliablilty and a great sound.