I have email
I have emailed iBasso in the past asking about voicing, since I know there are preferences in China and in Japan for certain types of sound. Having lived there (China) I can understand this. They stated to me that they do not voice it to a preference but try and get the player to be musical and at the same time neutral. With my own preferences, which IMO, and of course subjective, I find that they do sound fairly neutral but true neutrality is impossible, IMO, because of the variances in our ears, culture, musical culture and a host of other reasons. I have dynamic IEM's as well as BA and for me, have no issue with the DX90 and what it does with them. That is me and doesn't have to be anyone else's interpretation of what they hear and obviously there are some that would disagree what sounds good with the DX90.
The HM901 has a huge market in China. I don't think it has been voiced to a preference either but having spoken to Fang at his plant when I was there, he also tries to go for musical and neutral. Obviously different monitors will react differently though with the 901 you have a number of amp boards to choose from. I mention the 901 because I do not think you have to voice something to a preference in order for it to sell well, if it sounds good to begin with.
I fully agree with your point of a DAP will sell well if it sounded good to begin with. I would also agree if the iBasso will sell the DX90 equally well even if they keep the same sound FW2.0 signature unchanged in FW2.0.5 and FW2.1 as the DX90 did sound good at the beginning.
What I don't understand is why changing the sound signature in every firmware update but not mentioning it in the firmware release note. It seems to me that iBasso listens to customer feedbacks and responds by "perfecting" the sound signature base on the feedback. iBasso may think this is good customer service initiative. But then there will be another group of customers dislike the new signature and send iBasso further comments. The result is iBasso will change the sound signature again in the next firmware. This is my observation after seeing how iBasso handles DX50 firmware releases.
If iBasso does utilize DSP in the firmware, I wish they will enable multiple DSP profiles as user options. How nice it will be to have FW2.0 (DSP disabled), FW2.0.5 (Ambient) and FW2.1 (Clean) sound signature user selectable?
Edited by borrego - 7/14/14 at 10:01am