Why Beryllium and Ceramic drivers?

For a long time I have tuned with either dynamic drivers or a combination of dynamics and balanced armatures, so why have I stopped? Well after a long time of using titanium micro drivers and balanced armatures I have found what I consider the limits of this setup.  While you can make a great sounding IEM this way there is always a compromise be...
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Review sample on the way to Head-Fi reviewer

I believe that the R1 is the best thing I have ever made but every customer needs some honest and independent impressions/review. Today I have shipped a pre production unit to a well respected head-fi member to get you that review! I will update more as the impressions come in.
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IMR Launch day!

It seems like an age to get to this day but it is finally here! As many of you know I left my previous position to pursue my own goals and create some of the worlds best sounding in ear headphones.  Welcome one and all to IMR Acoustics! Bob
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