After lurking for awhile in this thread, I finally pulled the trigger and got myself an Envy a couple months back. I've been running it exclusively with the stock Full Music tubes for the past months and love the sound so far. But just today I changed the tube to the new production WE300b and boy it was one hell of an upgrade. Immediately everything sounds better; blacker background, more extended highs and lows, and vocals are so lush and seductive. I would say the WE is similar in terms of sound characteristic with the FM, but just better in every aspect.
I believe this amp is the closest thing to a time machine—what started as a 30-minute listening session turned into two hours of pure musical bliss. Where did all the time go?
I finally understand how capable the Envy is and tube rolling is a definitely a must for this amp! The beautiful blue light is definitely a plus, especially as a companion for late-night listening.