Just got my pair of MK2 yesterday and so far one thing has been really bothering me. The treble on these is insanely harsh and noisy, almost to the point where it's just noise. The cymbals and hi-hats are like lightning bolts. I heard they require at least a 100 hours of burn-in before they "even out" and come into their sound. Is it true or have i just got some kind of faulty build?
i got mines used so i can't say how much they have been listened to before me. but this iem in particular is very different in terms of fit. i had mines over maybe 6 months, now and it was only a few days ago i really unlocked the full potential of these guys. before i used the medium sony hybrids on these and the sky blue hybrids that the gr07 provides both were really good, at least at the time. i
but a few days ago i was fooling around and tried on the i had to use the biggest tip in the box (the purple LL) and i turned the nozzle upwards toward the front
wow immediately the sound stage was vast before, the placement of instruments and the beeps and bloops in electronic music were more precise the treble extends soo soo far now, but no harshness and was not as thin as before. it has a very sparkly treble, the bass toned down but tightened and extends very low and is still as fast as ever and the mids were perfectly intergrated, without any midbass bleed (i think it suffered a bit with medium tips) i have never heard of any iem that sounds as good as these.
overall they cover the entire sound spectrum so well and so well balanced but with the right amount of speed in the bass emphasis and treble emphasis to prevent them from sounding too clinical or overly analytical, splashing some fun element to it.
My iem journey has come to an end with the gr07 be. the only thing that can change this is if i get the mk2. (which would only be used as a backup in the event my be dies) but even if the be dies, i will sent them to btg audio to get recabled. i will not be without my gr07 be as my iem of choice from this day forth