Is "detailed" audiophile code for too much treble?

Bright can mean several different things. Clean, clear, stunning. It can also mean cold, lifeless, harsh.

ffed,” or “smeared” is what you hear when you go into the venue’s bathroom
 

That’s because the higher frequencies have been lost and only the lower remain. 

Bottom line is higher frequencies are an essential part of detail. They can also be a key source of noise and distortion which lead to fatigue.   It all is needed and all needs to be done well ie have a handle on noise and distortion.  After that it’s largely a matter of tuning to personal preference. 

It only means what people think the word describes. There are some who seem to equate lots of detail and transparency with a bright sound. But many don’t. There’s no definitive answer.

Some people say a highly detailed system is a little bright. Think of the opposite, a warm or lush sound. Wouldn’t that at least imply a loss of detail? So it’s just words that people assign to their own understanding of sounds. Some words have almost universal agreement, some don’t.

If you think about it, a flat frequency response SHOULD provide the most detail because if you have a dip in the response you loose detail through that area, and if you have a peak, you mask detail in other areas.

If you have a flat response to "beyond hearing" it will sound bright because most people are used to hearing "rolled off" highs.