Which SR Blue or black Fuse

@sleepwalker,
What part of "direct observation" and "experience" confuses you enough to think it's not "empirical"? Go back and reread the definition.

Data is just the accumulation of those facts and observations to be used in whatever calculation or testing format you wish to continue with. That, and I don't see how hearing something can be "tangible" as that refers to something you can touch.

All the best,
Nonoise

Pass Lab amplifiers respond wonderfully to having a Synergistic Research Blue fuse installed. This has been my experience with my First Watt F-7 amp, Pass Lab INT-60 amp, and his wonderful headphone amp the HP-1.

As a bonus the fuses are easy to get to so it takes about 3 minutes to swap out a fuse. I can not think of an easier experiment to improve the sound of one's system.

@davidpritchard  You can add the Pass XP20 Preamp to that list. Blue Fuse over stock fuse.

David Pritchard is always the reasonable gentleman on these tweak threads. Thank you, David. :-)

Frank 

 "I don't see anyone here trying to "sell people on fuses."

No just the same old handful shilling for the $$$$$ snake oil fuse makers. Isn't it great this crud isn't taking up valuable space now on the Amps Preamp forum, but put in it's right spot of "whatever"