Gotta love Nelson Pass

I’m new to Nelson Pass stuff, being a tube guy i decided to try something different for my Zu Audio Druid speakers. I bought First Watt F2J current source power amp this month (only 100 made), then i quickly ordered the original First Watt B1 buffer preamp by Nelson’s advice. Pass Labs Aleph L and Aleph P were competitive, but for a much higher price, so i’m happy i ended up with First Watt B1. I bought everything used, but Nelson Pass was very helpful by email. So i joined the "club", hello

I would suggest a bit caution when using Nelson Pass's gear. Many of his products have very different appropriate applications.

Many of his products have very different appropriate applications.

Hello, @unsound  - will you please elaborate on that? 

Everything explained on firstwatt.com , even about discontinued models. For example my F2J current source power amp is designed for crossover-less, high sensitive speakers (full range drivers) and not suitable for the speakers with crossover. For traditional speakers he has different amps. 

^Yes, even some of the Pass Labs branded amps, like some of the Alephs have some limited applications.