When first I listened to the M80's, I found them to be on the bright side at times. But when I went back for a second listen, I had them set up the M80's and M60's in a different part of their store and with different components. The brightness I had heard was gone. All I heard was pristine clear detailed sound that was dynamic. I really think it matters what components you use and the way your room is laid out. For those of you who haven't yet read my post (M60 & M80) and you're trying to decide between Axiom's line of speakers, I've posted my impressions of a side by side comparison.
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Aeromos