A very nice review. I am especially intrigued because I have the N30 and N40 myself. I found the N40 to be very V, with vocals quite behind in the mix. However, the Highs and upper mids can be a bit fatiguing on certain tracks - they are very much emphasized and sharp. Do you feel the same? Also, do you feel that the N40 has good extension in highs? Not comparing to anything, just in general.
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