Steve, which series of caps were you looking at? I use the KT series. They're light blue in color,
105C caps that are "Audio Grade" for whatever
that's worth. I just like the idea that they were designed (or are at least
marketed heheh) with audio in mind and they are hi temp, come in lots of values and are affordable. A good balance/blend for me and Mouser carries them. They aren't the "MUSE" caps that people rave about, but those are 85C caps anyway...I DO use the MUSE caps for bipolar audio path stuff...those are the ES series and are indeed more limited in the values available. I tend to use the PW series for non-audio path stuff and in the power supplies...VZ series if I can't find the right value in a PW...bigger stuff or Axial stuff I'll tend to use Cornell-Dublier or Vishay caps...really big stuff I like the Mallory computer grade caps...
.