Jantzen Audio 15uF 800V Z-Superior Capacitor

I have used a number of Jantzen Superior Z-Caps in speakers and output lines for a phono preamplifier. They replaced Solen and Axon capacitors. If you have high-end equipment that will reveal the sonic transparency of these capacitors, they are well worth the investment. A great place to read a comparison of a wide variety of capacitors is Humble Hifi (Google the site) under the section of Caps Test.