New Magico Speaker Break-in Question

Honest question... does a speaker such as the Magico create a harshness, or does it reproduce a harsh tone being sent to it with more clarity? I mean, do the drivers distort, etc and create the harshness?

My previous preamp sounded really good most of the time, but many songs sounded sibilant.  I blamed it on the recordings. When I was forced to get a new preamp, I still had excellent detail, but the sibilance was gone.  Upgrading my dac also helped. 

I'm not saying that this is the OP's problem.  I'm not familiar with his gear. 

@jmeyers 

I had exactly the same experience when upgraded SF Venere to SF Sonetto III, shrieking sound. I played them, facing each other and covered with heavy comforter, for four days using "Irrational but Efficacious" CD by Ayre. The results were obvious, shriekiness was almost gone. All together, after about 200 to 250 hours the sweet SF sound settled in. Be patient!

I had Salk speakers with this problem and did everything to try to figure this out. In the end: nope, not even absorption could help. I also recall the Be tweeters in the Focal 926 were pesky, too. 

Magico is a great company but I wonder if they're designing this speaker for that "high end clarity magic" that, to some ears, is just a shriek.

@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.

@jmeyers -- I hope re-positioning or time help to tame the speakers.

Apologies for breaking in, but your post gave me pause as I am on the verge of upgrading from A3s to A5s. The A5s will be  dealer demos from out of state with roughly 200 hrs. My amp is a  pre-owned T+A PA 3100 HV.

 I have pretty old ears that have lost a lot of HF detection, yet ironically have become sensitive to bright equipment.   Overall I really like the A3s and while they do not come across as too bright, I'm concerned that the more revealing A5s could.

I have not heard the A5s and kind of assumed that if I like the A3s, I will really like the A5s.