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Original Message
RE: "my skepticism was instead replaced by a lighter wallet"
Posted by bcowen on April 29, 2017 at 14:23:19:
But, assuming for a moment that I could hear an improvement, two things give me pause with boutique fuses. The first is the accuracy of their specifications. Does their 0.125 A fuse really open at more than a 0.125A current draw?
Good reason to pause. None of the boutique fuses have any independent agency listings (UL, CSA, CE, etc) to my knowledge. And while a UL listing doesn't guarantee that a 1.25 amp fuse will blow at 1.26 amps, it does offer an assurance that the engineering is sound and the manufacturing processes are consistent. The boutique fuses add some risk to the equation to be sure. I have only one component that I consider irreplaceable (my amp -- no longer made), and I'm almost glad I didn't hear any difference with the boutique fuse in it....it retains its UL listed Littelfuse. Maybe something subconscious was going on there that I didn't even know about.
Thanks for the additional info on the regulators (I hadn't read your post below). I guess I need to go yank the cover off my DAC now... :)