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New Magico Speaker Break-in Question

This afternoon, I received my new Magico A5s, which replaced Revel Studios that I have owned for more than 20 years. The A5s are definitely more clear, have superior imaging and provide at least equal soundstaging. The bass is tighter, but, with three 9" woofers, I am surprised that it doesn't go very deep at all (fortunately, I have two SVS SB17-Ultra subwoofers that will easily take care of that shortcoming).

However, there is one aspect of these A5's performance that I find a bit disquieting and the reason for this post. The treble in the 2KHz to 5KHz seems to be a little [what I'll call] shrieking; it is somewhat uncomfortable to listen to for an extended time. I know that this loudspeaker uses a beryllium tweeter, and I have never had a speaker before that employed one. Perhaps, its tonality is what I am reacting to .

And so, my question. I have read that it takes 250+ hours for the A5s to break-in and become the speaker that Mr. Wolf and his colleagues intended. As part of that break-in, will the tweeter also blossom and become easier to listen to? 

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jmeyers OP
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@decooney Many thanks for your thoughtful response. My A5s are powered by McIntosh MC611s. These are mono amplifiers that output 600 watts are 8, 4, and 2 ohms. Consequently, I don’t think that my amplification is the cause of my near-term concern.

@ all  I am impressed by, and most appreciative of, the thoughtfulness of all who have taken the time to respond to my inquiry. I would like to add that I also bought Magico's ACC as my new center channel speaker. Last night, my wife and I watched episodes of Matlock and Reaper. We always have subtitles engaged because it is hard for us to grasp all the dialogue. Afterwards, both of us were surprised that we weren't reading the subtitles. The ACC reproduced the dialogue so clearly that we were able to understand everything said. It was remarkable! I strongly recommend the Magico ACC as a center channel speaker.

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