Smooth treble

What one hears at a live concert is very dependent upon the concert venue and the actual seat.

Dazzdax

Great observation about the transition from low fi to mid fi. It appears to me that a number of speaker companies "pray" on those people, knowing that they will be in awe of the "detail" that speaker reproduces. I own a small shop and have "kissed a number of those frogs". A number of them have big names.
It is sort of like learning about red wine. I was in wine country last fall sampling from a very small grower. He said that the industry has been dominated by wines that are way over the top. He referred to his wines as table wines, meaning those that you would drink with food. They would not over power the flavor of the food.

Interesting observation and one that makes sense. I have tried some wines that at first taste "soooo goood" End up buying a case and then regretting that decision.

Sounds_real_audio,

I don't want to put you on the hot seat, but could you mention some specific brands/products that you think fall into this category?

I like the wine analogy. It is very hard to find good new world wines that do not taste like grape juice - most are just way over the top in flavoring (like some speakers). You are absolutely right about wine being intended to be a balanced drink go with food and not to be assault on your senses by itself. A fine wine is very drinkable and will enhance a meal enormously. I find myself generally going back to tried and true French wines (even though they are generally over priced). I never drink wine except with a meal. I never listen to speakers except to hear music.

Duelund caps in my Merlins. Prior to the Duelunds I perceived increased treble extension as brightness, after the Duelunds I hear it as simply treble extension. I would describe this brightness as a hardness in the treble, now have a silkier, more airy presentation. Furthermore, I've found cap upgrades throughout my system have imparted a much greater level of refinement to the treble (as well as the mids and bass).

Clean AC is also critical to attaining refined treble.

And I agree that as I've gotten older, anomolies in highs bother me more. I hear pressure and discomfort in my ear with any discontinuities in highs.