Hi Dale, I will listen to more treble-rich music this weekend and let you know... AFAIK my ears don't work well after 12K and maybe worse. They have no extra brightness, I am very sensitive to that and don't like it. I had listened to The Nutcracker ballet on Mercury Living Presence cd, and then the 1st disc of Chimes of Freedom, Bob Dylan's music done by a host of other artists.
Not treble rich, but so well delineated that I was just captivated!
I was able to informally test the treble I experienced by listening to the Ayre "Irrational, But Efficacious!" tuneup cd. The point it became inaudible did not bother me, and higher tones came back sporadically!!! The Alpha Primes use tuning dots to tame the high end which some people consider ragged. I have not looked
inside mine, but you might ask Dan about how to change those and if they would restore higher frequencies. I really love mine!
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