After the 100 hour burn-in, I took the DX228 and did some quick A/B. Treble extension on the M15 is much superior. This is curious, because it was not my initial impression. M15 is airier and more detailed with a much deeper soundstage. DX228 has nothing to do with M15 and can't be even compared at this point. Different leagues
Now, I would like to test DX229 as this AMP9 has better components than AMP8.
Now, I would like to test DX229 as this AMP9 has better components than AMP8.
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