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They better not retune the IT01s then, as they are just right as they are.
I like my early 2018 IT01 just as it is. I have the black one. Why did yours need replacing? Did they announce that it was retuned?
I don't know whether an official retune has taken place but the nozzles look different...look like screwed on... [https://www.audioreviews.org/ibasso-it01-photography/] and the frequency is different in the midrange. I measured several times over and also have good channel balance confirming the accuracy within my setup.
From memory, there was not much difference in sound: bass stayed the same and the mids were sharper/pseudo-clearer. Adding upper harmonics to the lower midrange may not be outright audible but may cause fatigue to some.
I sent a few questions to iBasso...
My original IT01 had given up in one earpiece...driver flex [I honestly have no clue what caused it]?
Spoiler: iBasso IT01: earpiece kaputt
I hope that driver flex does not kill drivers... some say it does... some say not. I have it in my TFZ Exclusive 3... no matter how carefully I put them in and no matter what tips I try. Because I had never experienced it before I got the TFZ, I thought the silicone ws making that sound but now I do not think that is the case. It would be impossible to find a replacement... pretty sure I got the last one in the world... after it was discontinued.
Thanks alot for the alert! I do like my oxygen alot but I feel the male vocals are full and clear without that nice power the kpe produce. However, the kpe vocals are slightly recessed for me which is no good either. I love the technical abilities of both these iems but am looking for an upgrade now.
Try micropore tape, covering the nozzle by 80-90%...or cover the whole nozzle and poke a hole near the side...and a second one opposite if needed. This could/should tame the upper midrange and treble...results vary.
iBasso told me that did not change the frequency response and that the filters can now be removed. They speculated that I did my measurements with clogged filters, hence the difference. My measurements were done ootb...maybe the nozzle length has changed.
here is a FR response of my very bright sounding Sabaj DA3 dac (the reason why i don't like the amazing sounding for the price NX7)
I've put up my first review in quite some time but this one does definitely deserves it so here's my thoughts on the Tansio Mirai TSMR-3 Pro for those who might be interested:
Those two with the switches are Tansio iems I presume? Any idea on the new TSMR5, I see it's going for $500 on Penon Audio.
For people interested in Hidizs MS4, here is my review - https://www.head-fi.org/showcase/review/22478
Let me know if I can answer any questions for you. Cheers!
They're the TSMR-3 Pro and the LZ Big Dipper.
The TSMR-5 is $419 and TSMR-6 is $529.
Posted reviews of Tri i4 and Ikko OH10 today. both are worth a look.
Got a question on the upper midrange between the OH1 and the OH10: which one is boosted more? From your review it appears to be the OH10.