What has been your most satisfying component?


I don't think I have seen this question asked so here it goes. Many of us tend to buy and sell looking for the ideal, the holy grail, what works best in the current system, or whatever.
What component (or components)have stood the test of time in your system? I've been through quite a few but some have stayed despite having bought their replacements and subsequently selling them. I'll share once we get a few posts to get things going.
nutella
Switching from a Goldmund DAC to a DCS Delius and Pucell Upsampler was the most satisfying upgrade I have made because it addressed a lot of underlying issues with the source.
One of my least expensive 'components' but most satisfying is a recent purchase of Harbeth M30's. For a bookshelf system- listening to classical, jazz, acoustic and vocal music, I think ( & hope) they've gotten me off the speaker 'merry-go-round'.
My merlins, they just keep revealing all the upgrades in the sources and amps.
And in time I will include the atma-spheres I am sure!
Pedrillo, sounds like you are more into the tech than the music. Which is ok too. Anyone into Hifi is bogus if they say it is just for the music. I get into both the tech and music. But once I find a certain point of satisfaction, I forget about the tech and focus on the music. In the end that's what drives us, right?

My favorite times listening to music is not always in front of my stereo- and it is not at concerts. It is either at some of the blues clubs in Detroit and Nashville or just walking around cities in Europe and finding musicians and/or bands playing on the street.
Tonywinsc,
Couldn't be further from the truth, I do appreciate the tech part and it is easier to enjoy the music when the system is well put together, but it is the music that I am appreciating and not the equipment.We're on the same page.